Patent US1766932A successfully refreshed from Google Patents.
US1766932A
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Hardened cellular or fibrous friction elements and method of producing same
Assignee: Raybestos Manhattan Inc
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Filing: 1926-06-09
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Granted: 1930-06-24
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Expires: 1946-06-09
Abstract
No abstract record available.
Inventors
- 👤 Izador J Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T442/00; Y10T442/20; Y10T442/2344
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) | 1933-06-23 | 1933-12-23 | 1934-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-23 | 1937-12-23 | 1938-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-23 | 1941-12-23 | 1942-06-24 | $7700.00 | Window Closed / Lapsed |