US2760045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt tile heater
Assignee: Individual
•
Filing: 1955-09-29
•
Granted: 1956-08-21
•
Expires: 1975-09-29
Abstract
No abstract record available.
Inventors
- 👤 William E Blue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:00
CPC Classifications
H; H05; H05B; H05B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2029075A
Cited
US2173622A
Cited
US2612586A
Cited
US2609316A
Cited
US2694135A
Cited
US2713108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |