Patent US5417712A successfully refreshed from Google Patents.
US2712458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe couplings
Assignee: Individual
•
Filing: 1950-06-05
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Granted: 1955-07-05
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Expires: 1970-06-05
Abstract
No abstract record available.
Inventors
- 👤 Lipson Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US797796A
Cited
US1094267A
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US1162319A
Cited
US1619328A
Cited
US1697314A
Cited
US1830674A
Cited
US2506286A
Cited
US2629403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |