US3549413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcing filaments comprising coated tungsten wires
Assignee: GEN TECHNOLOGIES CORP
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Filing: 1969-07-28
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Granted: 1970-12-22
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Expires: 1989-07-28
Abstract
No abstract record available.
Inventors
- 👤 Lee C Mccandless
- 👤 James C Withers
- 👤 Charles R Brummett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:28
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/42; C22; C22C; C22C47/00; C22C47/02; C22C47/04; C23C16/32; C23C16/325; C23C16/34; C23C16/38; C23C16/44; C23C16/54; C23C16/545; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12438; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/296; Y10T428/298
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1987576A
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US2656283A
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US2854353A
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US2920006A
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US3365330A
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US3460920A
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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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |