US2826472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window air conditioner enclosure
Assignee: Individual
•
Filing: 1954-07-16
•
Granted: 1958-03-11
•
Expires: 1974-07-16
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand W Humphner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:03
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2234771A
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US1137473A
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US1099499A
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US1069412A
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US1575683A
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US1552006A
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US1954590A
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US2115720A
Cited
US2316704A
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US2294664A
Cited
US2519085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |