US3428306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamps
Assignee: Individual
•
Filing: 1965-05-11
•
Granted: 1969-02-18
•
Expires: 1985-05-11
Abstract
No abstract record available.
Inventors
- 👤 Benjamin Waugh Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:37
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/04; B25B5/14; B25B5/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1037374A
Cited
US1136364A
Cited
US1854078A
Cited
US2108077A
Cited
US2564138A
Cited
US2731696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |