Patent US3397718A successfully refreshed from Google Patents.
US3397718A
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Assignee: Beloit Corp
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Filing: 1965-10-20
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Granted: 1968-08-20
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 David H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:58
CPC Classifications
F; F17; F17B; F17B1/00; F17B1/02; F17B1/12; B; B01; B01J; B01J3/00; B01J3/002; D; D21; D21C; D21C7/00; D21C7/06; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36; F16K1/38; F16K31/00; F16K31/12; F16K31/122; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |