US2364204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-oxygen treated polyamides
Assignee: AT&T Inc
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Filing: 1941-03-28
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Granted: 1944-12-05
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Expires: 1961-03-28
Abstract
No abstract record available.
Inventors
- 👤 Calvin S Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/307; C08J2377/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2973; Y10T428/31504; Y10T428/31725; Y10T428/31739
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) | 1947-12-05 | 1948-06-05 | 1948-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-05 | 1952-06-05 | 1952-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-05 | 1956-06-05 | 1956-12-05 | $7700.00 | Window Closed / Lapsed |