Patent US2512191A successfully refreshed from Google Patents.
US2926232A
Expired / Lapsed
US
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Edge heaters for thermoplastic dielectric workpieces
Assignee: Armstrong World Industries Inc
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Filing: 1958-09-02
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Granted: 1960-02-23
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Expires: 1978-09-02
Abstract
No abstract record available.
Inventors
- 👤 George E Gard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:56
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/12; B29B; B29B13/00; B29B13/02; B29B13/023; B29C67/00; B29C67/0044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |