US2937892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube coupling
Assignee: Individual
•
Filing: 1956-12-03
•
Granted: 1960-05-24
•
Expires: 1976-12-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert E Prescott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:58
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/22; F16L33/225; F16L33/226; F16L47/00; F16L47/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189411080A
Cited
US1064154A
Cited
US1113994A
Cited
US1203546A
Cited
US1275996A
Cited
US1915041A
Cited
DE572488C
Cited
GB479296A
Cited
US2248578A
Cited
US2439199A
Cited
US2580818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |