Patent US2531828A successfully refreshed from Google Patents.
US2531828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated fuel impregnated block
Assignee: Individual
•
Filing: 1945-02-20
•
Granted: 1950-11-28
•
Expires: 1965-02-20
Abstract
No abstract record available.
Inventors
- 👤 Lloyd G Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:54
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/20; A01M1/2022; A01M1/2061; A01M1/2066; C; C10; C10L; C10L5/00; C10L5/40; Y; Y02; Y02E; Y02E50/00; Y02E50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
AN ARTICLE OF THE CHARACTER DESCRIBED COMPRISING A PIECE OF ABSORBENT MATERIAL HAVING MIXED THEREWITH A LIQUID FUEL AND HAVING A FIRE RESISTING EASILY FRANGIBLE COATING ADHERED ON THE SIDES FOR RESISTING THE PASSAGE OF AIR.
Claim 2
Dependent Claim
36 words
AN ARTICLE OF THE CHARACTER DESCRIBED COMPRISING A PIECE OF ABSORBENT MATERIAL HAVING MIXED THEREWITH A LIQUID FUEL AND HAVING A FIRE RESISTING EASILY FRANGIBLE COATING ADHERED ON THE SIDES FOR RESISTING THE PASSAGE OF AIR.
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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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |