US2771537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal floor covering
Assignee: Individual
•
Filing: 1954-06-04
•
Granted: 1956-11-20
•
Expires: 1974-06-04
Abstract
No abstract record available.
Inventors
- 👤 Morris D Lichtenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:35
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1004270A
Cited
US1921343A
Cited
US2025586A
Cited
US2107598A
Cited
US2511540A
Cited
US2619580A
Cited
US2712592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |