US2914788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doctor knives
Assignee: D S T PATTERN AND ENGINEERING
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Filing: 1958-03-04
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Granted: 1959-12-01
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Expires: 1978-03-04
Abstract
No abstract record available.
Inventors
- 👤 Smith Eric
- 👤 Scholes Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:53
CPC Classifications
B; B41; B41F; B41F9/00; B41F9/06; B41F9/08; B41F9/10; B41F9/1036; B41F9/1045; D; D21; D21G; D21G3/00; D21G3/005
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 |