Patent US3068753A successfully refreshed from Google Patents.
US3068753A
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US
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Heat-reflective light-transmitting panel
Assignee: Wyeth Holdings LLC
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Filing: 1957-03-29
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Granted: 1962-12-18
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Expires: 1977-03-29
Abstract
No abstract record available.
Inventors
- 👤 Maurice C Kirkpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:40
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; E04C; E04C2/00; E04C2/54; E04D; E04D13/00; E04D13/03; E04D13/033; G; G02; G02B; G02B5/00; G02B5/20; G02B5/208
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |