US3494077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool having a variable-stroke drive
Assignee: Rogers & Clarke Manufacturing Co
•
Filing: 1967-06-23
•
Granted: 1970-02-10
•
Expires: 1987-06-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:32
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/02; B24B13/023; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18184
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1331037A
Cited
US2458384A
Cited
US2669316A
Cited
US2605622A
Cited
US2592237A
Cited
US2835123A
Cited
US2849820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |