US2810401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable pipe closure
Assignee: Individual
•
Filing: 1955-02-17
•
Granted: 1957-10-22
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Burton J Stansbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:41
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/128; F16L55/136; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/0849; Y10T292/0861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US135822A
Cited
US1115534A
Cited
US1370585A
Cited
US1560280A
Cited
US2339455A
Cited
US2512169A
Cited
US2670799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |