US2845854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination light fixture and ventilating apparatus
Assignee: Pyle National Co
•
Filing: 1955-03-02
•
Granted: 1958-08-05
•
Expires: 1975-03-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Kurek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:55
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB375862A
Cited
US2210589A
Cited
US2564334A
Cited
US2568044A
Cited
US2683408A
Cited
US2701998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |