US3456316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-land end mills
Assignee: Lockheed Martin Corp
•
Filing: 1967-08-31
•
Granted: 1969-07-22
•
Expires: 1987-08-31
Abstract
No abstract record available.
Inventors
- 👤 Charles A Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:53
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/02; B23C5/10; B23C2210/00; B23C2210/20; B23C2210/207; B23C2210/24; B23C2210/241; B23C2210/32; B23C2210/321; B23C2210/44; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297611A
Cited
US3374518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |