US2709745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting apparatus for door structures
Assignee: SUNDT ENGINEERING Co
•
Filing: 1951-11-16
•
Granted: 1955-05-31
•
Expires: 1971-11-16
Abstract
No abstract record available.
Inventors
- 👤 Edward V Sundt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:10
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/10; Y; Y10; Y10S; Y10S362/00; Y10S362/802
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US629631A
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US723836A
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US1263880A
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US1505325A
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US1756875A
Cited
US1961865A
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US2309840A
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US2575820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |