US3476641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-strength single crystal whisker paper composites and laminates
Assignee: GEN TECHNOLOGIES CORP
•
Filing: 1965-06-01
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Granted: 1969-11-04
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 John V Milewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:41
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/18; D21H13/00; D21H13/36; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249927; Y10T428/249928; Y10T428/249929; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/614; Y10T442/623
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) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |