US2984459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning
Assignee: Buensod Stacey Corp
•
Filing: 1957-08-02
•
Granted: 1961-05-16
•
Expires: 1977-08-02
Abstract
No abstract record available.
Inventors
- 👤 Robert W Waterfill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:19
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/02; F24F3/044; F24F3/048; F24F3/052; F24F3/0522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2223287A
Cited
US2479069A
Cited
US2508749A
Cited
US2609183A
Cited
US2708568A
Cited
US2747842A
Cited
US2756026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |