US2461818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing coupling
Assignee: Sunoco Inc
•
Filing: 1946-08-07
•
Granted: 1949-02-15
•
Expires: 1966-08-07
Abstract
No abstract record available.
Inventors
- 👤 Hague Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:22
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/096; F16L37/28; F16L37/30; F16L37/32; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US166489A
Cited
US949329A
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US1779421A
Cited
US1850879A
Cited
US2173295A
Cited
US2278580A
Cited
US2299193A
Cited
US2322449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |