US2936186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling with overlapped gasket
Assignee: Smith Blair Inc
•
Filing: 1957-01-25
•
Granted: 1960-05-10
•
Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 Paul G Dunmire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/17; F16L55/172; F16L21/00; F16L21/002; F16L21/005; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US863887A
Cited
US982028A
Cited
FR703105A
Cited
DE571345C
Cited
US1996741A
Cited
US2408572A
Cited
US2690193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |