US3362469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air curtain
Assignee: Berner Industries Inc
•
Filing: 1966-01-03
•
Granted: 1968-01-09
•
Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Berner Erling
- 👤 Christian E E Berner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:47
CPC Classifications
F; F24; F24F; F24F9/00; F04; F04D; F04D17/00; F04D17/02; F04D17/04; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/422; Y; Y10; Y10S; Y10S165/00; Y10S165/228; Y10S165/302; Y10S165/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1886513A
Cited
US2685476A
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US2942773A
Cited
US2827266A
Cited
US3249292A
Cited
US3018712A
Cited
US3038400A
Cited
US3177794A
Cited
US3157105A
Cited
US3256798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |