US2801673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous glass mats and manufacture thereof
Assignee: Owens Corning
•
Filing: 1954-01-04
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Granted: 1957-08-06
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Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Paul L Welsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:08
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/08; C; C04; C04B; C04B30/00; C04B30/02; Y; Y10; Y10T; Y10T442/00; Y10T442/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |