Patent US3462275A successfully refreshed from Google Patents.
US3462275A
Expired / Lapsed
US
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Waste conversion process and product
Assignee: BIOLOGICAL ENERGY Corp A CORP OF DE
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Filing: 1968-01-31
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Granted: 1969-08-19
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Expires: 1988-01-31
Abstract
No abstract record available.
Inventors
- 👤 Winthrop D Bellamy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:18
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1205; C02F3/1215; A; A23; A23K; A23K10/00; A23K10/10; A23K10/12; C02F1/00; C02F1/52; C02F1/5263; C02F3/34; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S435/00; Y10S435/804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA652585A
Cited
US1980244A
Cited
US3025151A
Cited
US3219575A
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US3236766A
Cited
US3337448A
Cited
US3356609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |