Patent US1657698A successfully refreshed from Google Patents.
US1657698A
Expired / Lapsed
US
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Art of burning fuel
Assignee: Individual
•
Filing: 1923-09-06
•
Granted: 1928-01-31
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Expires: 1943-09-06
Abstract
No abstract record available.
Inventors
- 👤 Schutz Joseph Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:32
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/006; F23C3/008; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-01-30 | 1931-08-01 | 1932-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-01-30 | 1935-08-01 | 1936-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-01-30 | 1939-08-01 | 1940-01-31 | $7700.00 | Window Closed / Lapsed |