US2720799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for molding a wrench and hard-metal insert used therein
Assignee: Individual
•
Filing: 1954-07-26
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Granted: 1955-10-18
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Expires: 1974-07-26
Abstract
No abstract record available.
Inventors
- 👤 Pfost Leland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:47
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/06; B25; B25B; B25B13/00; B25B13/02; B25B13/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49993
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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |