US2526699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of compensating for or preventing heat losses from material during dielectric heating thereof
Assignee: Armstrong World Industries Inc
•
Filing: 1946-06-21
•
Granted: 1950-10-24
•
Expires: 1966-06-21
Abstract
No abstract record available.
Inventors
- 👤 George E Gard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/62; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2280771A
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US2303341A
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US2341617A
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GB517798A
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US2304958A
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US2308995A
Cited
US2388824A
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US2463054A
Cited
US2421101A
Cited
US2413003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |