Patent US1988565A successfully refreshed from Google Patents.
US1988565A
Expired / Lapsed
US
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Glass cutting apparatus
Assignee: PPG Industries Inc
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Filing: 1934-04-13
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Granted: 1935-01-22
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Expires: 1954-04-13
Abstract
No abstract record available.
Inventors
- 👤 Owen William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:03
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/04; C03B33/10; C03B33/12; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/307; Y10T225/321; Y10T225/325; Y10T83/00; Y10T83/263
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) | 1938-01-21 | 1938-07-23 | 1939-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-01-21 | 1942-07-23 | 1943-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-01-21 | 1946-07-23 | 1947-01-22 | $7700.00 | Window Closed / Lapsed |