US2028437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die
Assignee: Acme Air Appliance Co Inc
•
Filing: 1934-05-18
•
Granted: 1936-01-21
•
Expires: 1954-05-18
Abstract
No abstract record available.
Inventors
- 👤 Albert E Carliss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:42
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/167; B23G; B23G5/00; B23G5/02; B23G5/04; B23G5/06; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/904; Y10T408/9044; Y10T408/9045
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-01-20 | 1939-07-22 | 1940-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-20 | 1943-07-22 | 1944-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-20 | 1947-07-22 | 1948-01-21 | $7700.00 | Window Closed / Lapsed |