Patent US1782475A successfully refreshed from Google Patents.
US1782475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate-glass-polishing apparatus
Assignee: Pilkington Group Ltd
•
Filing: 1925-08-06
•
Granted: 1930-11-25
•
Expires: 1945-08-06
Abstract
No abstract record available.
Inventors
- 👤 Merian Frederic
- 👤 James W Cruikshank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:37
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/20; B24B7/22; B24B7/24; B24B7/242; B24B7/244
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) | 1933-11-24 | 1934-05-26 | 1934-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-11-24 | 1938-05-26 | 1938-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-11-24 | 1942-05-26 | 1942-11-25 | $7700.00 | Window Closed / Lapsed |