US2723732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doors or the like
Assignee: WEATHER PROOF CO
•
Filing: 1952-03-18
•
Granted: 1955-11-15
•
Expires: 1972-03-18
Abstract
No abstract record available.
Inventors
- 👤 Wilber E Pettersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:04
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR581659A
Cited
US1329427A
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US1883870A
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US2077122A
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US2262670A
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US2545901A
Cited
US2558636A
Cited
US2541948A
Cited
US2571846A
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US2538138A
Cited
US2612660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |