US2740732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of bonding a metal film to a thermoplastic sheet and resulting product
Assignee: Sprague Electric Co
•
Filing: 1951-07-16
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Granted: 1956-04-03
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Expires: 1971-07-16
Abstract
No abstract record available.
Inventors
- 👤 David B Peck
- 👤 Robinson Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:09
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/58; C23C14/5806; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C23C14/06; C23C14/14; C23C14/20; C23C14/584; H; H01; H01B; H01B1/00; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; H01B3/422; H01B3/423; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
THE PROCESS OF BONDING A METAL FILM TO A SUBSTANTIALLY LINEAR THERMOPLASTIC PLANAR ORIENTED DIELECTRIC POLYESTER SHEET CONFORMING TO THE RECURRENT FORMULA:
Claim 2
Dependent Claim
22 words
THE PROCESS OF BONDING A METAL FILM TO A SUBSTANTIALLY LINEAR THERMOPLASTIC PLANAR ORIENTED DIELECTRIC POLYESTER SHEET CONFORMING TO THE RECURRENT FORMULA:
References Cited (Backward Citations)
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US2332461A
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US2382432A
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US2312913A
Cited
US2384500A
Cited
US2497376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |