Patent US3526306A successfully refreshed from Google Patents.
US3526306A
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US
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Assignee: Raymark Industries Inc
•
Filing: 1968-02-08
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Granted: 1970-09-01
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Expires: 1988-02-08
Abstract
No abstract record available.
Inventors
- 👤 Lloyd Oscar Bentz
- 👤 Harold Clifford Hilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:49
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; F16D69/025; F16D69/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2428298A
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US2546056A
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US2640795A
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US2702770A
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US3068131A
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US3287204A
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US3365041A
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US3429766A
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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) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |