US3414299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe couplings
Assignee: HOLMBERG Inc
•
Filing: 1965-12-17
•
Granted: 1968-12-03
•
Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 Homer D Roe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/14; F16L37/142; F16L37/148; F16L19/00; F16L19/04; F16L27/00; F16L27/10; F16L27/1017; F16L27/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3127199A
Cited
US2364447A
Cited
US2463336A
Cited
US2760258A
Cited
US2916305A
Cited
GB878602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |