US1470995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edging machine
Assignee: American Optical Corp
•
Filing: 1919-11-26
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Granted: 1923-10-16
•
Expires: 1939-11-26
Abstract
No abstract record available.
Inventors
- 👤 Albert E Maynard
- 👤 William A Gunning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:26
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/14; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/1828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-10-15 | 1927-04-16 | 1927-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-10-15 | 1931-04-16 | 1931-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-10-15 | 1935-04-16 | 1935-10-16 | $7700.00 | Window Closed / Lapsed |