US3050909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of polishing aspheric surfaces
Assignee: Individual
•
Filing: 1960-02-16
•
Granted: 1962-08-28
•
Expires: 1980-02-16
Abstract
No abstract record available.
Inventors
- 👤 Rawstron George Ormerod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:46
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/01; B24B13/012; B24B11/00; B24B13/02; B24B13/06; B24B13/065; B24B17/00; B24B17/02; B24B17/025; B24D; B24D13/00; B24D13/14; B24D13/142; B24D9/00; B24D9/08; B24D9/085; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988649A
Cited
US2280555A
Cited
US2392478A
Cited
US2589488A
Cited
US2747339A
Cited
US2806327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |