Patent US1946932A successfully refreshed from Google Patents.
Patent US2491889A successfully refreshed from Google Patents.
US2491889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of coated glass and the like products
Assignee: Owens Corning
•
Filing: 1942-01-21
•
Granted: 1949-12-20
•
Expires: 1962-01-21
Abstract
No abstract record available.
Inventors
- 👤 Willard H Bennett
- 👤 Robert B Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
H; H01; H01G; H01G7/00; H01G7/02; B; B05; B05B; B05B5/00; B05B5/08; B05B5/14; C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/0203; C03B37/0209; C03C; C03C25/00; C03C25/10; C03C25/12; Y; Y10; Y10S; Y10S118/00; Y10S118/22
Claims Analysis
Total Claims: 0
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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) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |