Patent US2827312A successfully refreshed from Google Patents.
US2827312A
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Pneumatic coupler having radially moveable locking means
Assignee: Individual
•
Filing: 1956-04-26
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Granted: 1958-03-18
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Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 Sidney H Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:58
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/10; F16L37/00; F16L37/62; Y; Y10; Y10S; Y10S285/00; Y10S285/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2015081A
Cited
US2206672A
Cited
US2523716A
Cited
US2715532A
Cited
US2727759A
Cited
US2756075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |