Patent US3485599A successfully refreshed from Google Patents.
US3485599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid ignition charcoal briquette
Assignee: JOHN A HARDISTY
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Filing: 1968-05-20
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Granted: 1969-12-23
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Expires: 1988-05-20
Abstract
No abstract record available.
Inventors
- 👤 Howard Eugene Richardson
- 👤 John A Hardisty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:03
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/40; C10L5/44; Y; Y02; Y02E; Y02E50/00; Y02E50/10; Y02E50/30
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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |