US3382789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film developer
Assignee: United States Department of the Navy
•
Filing: 1966-04-20
•
Granted: 1968-05-14
•
Expires: 1986-04-20
Abstract
No abstract record available.
Inventors
- 👤 Charles E Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:15
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN IMPROVED AUTOMATIC FILM DEVELOPER FOR DEVELOPING SENSITIVE FILM, COMPRISING: (A) A MOVABLE FILM HOLDER CAPABLE OF HOLDING A PLURALITY OF HEAT SENSITIVE FILMS TO BE DEVELOPED; (B) FIRST DRIVE MEANS FOR MOVING SAID FILM HOLDER; (C) A PLURALITY OF FILMS HELD ON SAID MOVABLE HOLDER; (D) FIRST AND SECOND HEATING ELEMENTS POSITIONED ADJACENT SAID MOVABLE MEANS CAPABLE OF BEING MOVED TOWARDS AND AWAY FROM EACH OTHER; (E) SECOND DRIVE MEANS FOR MOVING SAID HEATING ELEMENTS TOWARDS AND AWAY FROM EACH OTHER; (F) FIRST SWITCHING MEANS FOR STOPPING SAID FIRST DRIVE MEANS;
Claim 2
Dependent Claim
92 words
AN IMPROVED AUTOMATIC FILM DEVELOPER FOR DEVELOPING SENSITIVE FILM, COMPRISING: (A) A MOVABLE FILM HOLDER CAPABLE OF HOLDING A PLURALITY OF HEAT SENSITIVE FILMS TO BE DEVELOPED; (B) FIRST DRIVE MEANS FOR MOVING SAID FILM HOLDER; (C) A PLURALITY OF FILMS HELD ON SAID MOVABLE HOLDER; (D) FIRST AND SECOND HEATING ELEMENTS POSITIONED ADJACENT SAID MOVABLE MEANS CAPABLE OF BEING MOVED TOWARDS AND AWAY FROM EACH OTHER; (E) SECOND DRIVE MEANS FOR MOVING SAID HEATING ELEMENTS TOWARDS AND AWAY FROM EACH OTHER; (F) FIRST SWITCHING MEANS FOR STOPPING SAID FIRST DRIVE MEANS;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |