US2701192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing pads
Assignee: American Optical Corp
•
Filing: 1949-02-02
•
Granted: 1955-02-01
•
Expires: 1969-02-02
Abstract
No abstract record available.
Inventors
- 👤 Edward W Maass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:06
CPC Classifications
B; B24; B24B; B24B37/00; B24B37/02; B24B13/00; B24B13/01; B24B37/11; B24B37/20; B24B37/26; B24D; B24D13/00; Y; Y10; Y10S; Y10S451/00; Y10S451/921; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
21 words
AN INHERENTLY SUBSTANTIALLY ABRASIVE-FREE PAD FOR USE IN POLISHING GLASS ARTICLES, SAID PAD COMPRISING THE VULCANIZED RELATIVELY DENSE SOLID PRODUCT OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |