US1440933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broach
Assignee: PERKINS APPLIANCE Co
•
Filing: 1920-07-15
•
Granted: 1923-01-02
•
Expires: 1940-07-15
Abstract
No abstract record available.
Inventors
- 👤 Julian L Perkins
- 👤 Frank W Sickles
- 👤 Oakley John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:34
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/26; Y; Y10; Y10T; Y10T407/00; Y10T407/14; Y10T407/16; Y10T407/1628; Y10T407/1657; Y10T407/1671; Y10T407/17
Claims Analysis
Total Claims: 0
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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) | 1926-01-01 | 1926-07-03 | 1927-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-01-01 | 1930-07-03 | 1931-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-01-01 | 1934-07-03 | 1935-01-02 | $7700.00 | Window Closed / Lapsed |