US1559643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for polishing or grinding glass knobs and similar articles
Assignee: CAMBRIDGE GLASS Co
•
Filing: 1922-12-07
•
Granted: 1925-11-03
•
Expires: 1942-12-07
Abstract
No abstract record available.
Inventors
- 👤 Powell James Chester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:34
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/006; Y; Y10; Y10S; Y10S29/00; Y10S29/07; Y10S29/074
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1928-11-02 | 1929-05-04 | 1929-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-02 | 1933-05-04 | 1933-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-02 | 1937-05-04 | 1937-11-03 | $7700.00 | Window Closed / Lapsed |