US2729282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
lennox
Assignee: —
•
Filing: —
•
Granted: 1956-01-03
•
Expires: 1973-01-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
F; F23; F23D; F23D5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2448142A
Cited
US2025074A
Cited
US1560633A
Cited
US1903364A
Cited
US1985991A
Cited
US2307007A
Cited
US2286857A
Cited
US2438275A
Cited
US2393233A
Cited
US2471833A
Cited
US2588349A
Cited
US2693849A
Cited
US2656883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |