US2915152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak-proof bolt
Assignee: Individual
•
Filing: 1957-03-12
•
Granted: 1959-12-01
•
Expires: 1977-03-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:27
CPC Classifications
F; F16; F16B; F16B43/00; F16B43/001; B; B65; B65D; B65D90/00; B65D90/02; B65D90/08; F16B2200/00; F16B2200/60; Y; Y10; Y10T; Y10T403/00; Y10T403/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |