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Patent US2543970A successfully refreshed from Google Patents.
US2543970A
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Panel construction and method of forming the same
Assignee: EXMET ELECTRICAL Corp
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Filing: 1949-08-03
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Granted: 1951-03-06
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Expires: 1969-08-03
Abstract
No abstract record available.
Inventors
- 👤 Horsfall James
- 👤 Robert M Felsenthal
- 👤 Audrey J Bowden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:50
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B32; B32B; B32B27/00; Y; Y02; Y02B; Y02B30/00; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1318028A
Cited
US1200352A
Cited
US1396871A
Cited
GB369231A
Cited
US2084556A
Cited
GB493533A
Cited
US2393100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |