US3277545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latches
Assignee: Individual
•
Filing: 1964-07-01
•
Granted: 1966-10-11
•
Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 Martin James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:05
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/30; B64; B64D; B64D25/00; B64D25/02; B64D25/06; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45466; Y10T24/45602; Y10T24/45623; Y10T24/45628
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A LATCH COMPRISING AT LEAST ONE FLUID PRESSURE-OPERABLE PISTON AND CYLINDER DEVICE INCLUDING TWO PISTONS MOVABLE BY PRESSURE FLUID SUPPLIED THERETO; A LATCH-LOCKING MEMBER AND A GUIDE PLUG ASSOCIATED WITH EACH SAID PISTON, EACH PISTON TELESCOPING PARTLY OVER ITS ASSOCIATED GUIDE PLUG; SPRING-BIASSING MEANS URGING EACH SAID LATCHLOCKING MEMBER TO A LOCKING POSITION AND COMPRISING SPRING MEANS ACTING BETWEEN EACH SAID PLUG AND ITS ASSOCIATED PISTON; AND MECHANISM OPERABLE BY SAID DEVICE FOR MOVING SAID LATCH-LOCKING MEMBERS TO UNLOCKED POSITIONS.
Claim 2
Dependent Claim
80 words
A LATCH COMPRISING AT LEAST ONE FLUID PRESSURE-OPERABLE PISTON AND CYLINDER DEVICE INCLUDING TWO PISTONS MOVABLE BY PRESSURE FLUID SUPPLIED THERETO; A LATCH-LOCKING MEMBER AND A GUIDE PLUG ASSOCIATED WITH EACH SAID PISTON, EACH PISTON TELESCOPING PARTLY OVER ITS ASSOCIATED GUIDE PLUG; SPRING-BIASSING MEANS URGING EACH SAID LATCHLOCKING MEMBER TO A LOCKING POSITION AND COMPRISING SPRING MEANS ACTING BETWEEN EACH SAID PLUG AND ITS ASSOCIATED PISTON; AND MECHANISM OPERABLE BY SAID DEVICE FOR MOVING SAID LATCH-LOCKING MEMBERS TO UNLOCKED POSITIONS.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |