Provisional Application
Specification
Drawings (if necessary to understand invention)
Cover sheet
Filing fee
No claims required
No oath/declaration required
Never examined by USPTO
Nonprovisional (Utility)
Specification (with written description & enablement)
At least one claim
Abstract
Drawings (if necessary)
Oath/declaration
Filing fee
Must claim priority to provisional within 12 months
Begins examination process
Maintenance fees required post-grant
Design Patent
Specification
Drawings (mandatory — the drawings ARE the disclosure)
Exactly one claim
Oath/declaration
Filing fee
No abstract required
No maintenance fees
Protects ornamental appearance only
Plant Patent
Botanical description (full specification)
Color drawings or color photographs
Exactly one claim
Oath/declaration
Filing fee
Latin genus and species required
No provisional application available
Asexual reproduction required
No maintenance fees
PCT (International Application)
Request form (PCT/RO/101)
Specification
Claims
Abstract
Drawings (if necessary)
Filing fee
Search fee to ISA
Must file within 12 months of priority date
National phase entry at 30 months
Chapter II examination optional
Covers 150+ member states
Continuation
Same disclosure as parent (no new matter)
New or different claims
Oath/declaration
Filing fee
Must be filed while parent application is pending
Claims benefit of parent filing date
Commonly triggers ODP rejection → terminal disclaimer
Continuation-in-Part (CIP)
Original parent disclosure
New matter added
Claims
Oath/declaration
Filing fee
New matter only gets new (later) filing date
Old subject matter retains parent date
Higher risk of prior art issues for new matter claims
Divisional
Same disclosure as parent (no new matter)
Claims directed to non-elected invention
Oath/declaration
Filing fee
Filed after restriction requirement
Safe harbor from double patenting rejections
Claims parent priority date
RCE (Request for Continued Examination)
Submission (amendment, IDS, or remarks)
Filing fee
Filed after final rejection or notice of allowance
Does NOT create a new application
Not available after issue fee is paid
Reopens prosecution of existing application
Reissue
Reissue oath/declaration (must identify error)
Surrender of original patent
Amended specification and/or claims
Filing fee
Broadening claims: must file within 2 years of grant
Narrowing: no time limit
Recapture doctrine limits recapturing surrendered subject matter
IDS (Information Disclosure Statement)
List of references (Form PTO/SB/08)
Copies of non-US and non-patent literature references
Fee (if after first Office Action)
Certification (timing dependent)
Before first OA: no fee, no certification
After first OA: fee OR certification
After final/allowance: fee AND certification
After issue fee paid: requires abandonment
Terminal Disclaimer
Written disclaimer document
Common ownership covenant
Filing fee
Signature of owner or authorized agent
Overcomes nonstatutory (obviousness-type) double patenting ONLY
Cannot overcome statutory (same invention) double patenting
Patents must remain commonly owned or become unenforceable