US2344601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of fibrous glass
Assignee: Owens Corning
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Filing: 1941-02-27
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Granted: 1944-03-21
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Expires: 1961-02-27
Abstract
No abstract record available.
Inventors
- 👤 Howard W Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:43
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; C; C04; C04B; C04B30/00; C04B30/02; D04H1/42; D04H1/4209; D04H1/4218; D04H1/70; D04H1/72; D04H1/732; D04H1/736; Y; Y10; Y10S; Y10S264/00; Y10S264/75; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T442/00; Y10T442/60; Y10T442/69; Y10T442/691
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) | 1947-03-21 | 1947-09-20 | 1948-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-21 | 1951-09-20 | 1952-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-21 | 1955-09-20 | 1956-03-21 | $7700.00 | Window Closed / Lapsed |