US3446014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverizer
Assignee: Struthers Energy Systems Inc
•
Filing: 1968-01-17
•
Granted: 1969-05-27
•
Expires: 1988-01-17
Abstract
No abstract record available.
Inventors
- 👤 Richard W Foster-Pegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:16
CPC Classifications
F; F23; F23D; F23D1/00; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/067; F02; F02C; F02C3/00; F02C3/20; F02C3/26; F02C3/28; F23K; F23K1/00; F23K2201/00; F23K2201/10; F23K2201/1006; Y; Y02; Y02E; Y02E20/00; Y02E20/16; Y02E20/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2032827A
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US2284746A
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GB675583A
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US3002347A
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GB904536A
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US3203175A
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US3195306A
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US3137133A
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US3357896A
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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) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |