US2741003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the conditioning of air
Assignee: Individual
•
Filing: 1952-01-21
•
Granted: 1956-04-10
•
Expires: 1972-01-21
Abstract
No abstract record available.
Inventors
- 👤 David Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:08
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/50; Y; Y10; Y10S; Y10S261/00; Y10S261/65; Y10S261/88; Y10S261/89
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US508112A
Cited
US2152466A
Cited
US680384A
Cited
US958813A
Cited
US1034130A
Cited
US1075267A
Cited
US1238068A
Cited
US1703640A
Cited
US1699001A
Cited
US2340932A
Cited
US2541637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |