US3307437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable swivel head for tool handles
Assignee: Individual
•
Filing: 1965-04-08
•
Granted: 1967-03-07
•
Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Sontag Harcourt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:00
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/005; B25B23/00; B25G; B25G1/00; B25G1/04; B25G1/043; B25G1/046
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |