US2936187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid leakage proof entrance seal
Assignee: Individual
•
Filing: 1955-11-10
•
Granted: 1960-05-10
•
Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Robert E Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:54
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/184; F16J15/185; F16J15/186; H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/308; Y; Y10; Y10S; Y10S277/00; Y10S277/926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US328846A
Cited
US1142642A
Cited
US2009423A
Cited
US2022529A
Cited
US2371753A
Cited
US2689145A
Cited
US2628112A
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 |