US1704413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heating curved surfaces
Assignee: National Aniline and Chemical Co Inc
•
Filing: 1925-01-17
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Granted: 1929-03-05
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Expires: 1945-01-17
Abstract
No abstract record available.
Inventors
- 👤 Justin F Wait
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:23
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0014; F; F24; F24H; F24H9/00; F24H9/18; F24H9/1809; F24H9/1818; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
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) | 1932-03-04 | 1932-09-03 | 1933-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-03-04 | 1936-09-03 | 1937-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-03-04 | 1940-09-03 | 1941-03-05 | $7700.00 | Window Closed / Lapsed |