Patent US1464269A successfully refreshed from Google Patents.
US1464269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator
Assignee: Individual
•
Filing: 1921-03-31
•
Granted: 1923-08-07
•
Expires: 1941-03-31
Abstract
No abstract record available.
Inventors
- 👤 Frank G Krakan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:30
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0202; F28F9/0204; F28F9/0214; F28F9/0217; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471; Y10S165/481; Y10S165/482
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) | 1926-08-06 | 1927-02-05 | 1927-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-08-06 | 1931-02-05 | 1931-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-08-06 | 1935-02-05 | 1935-08-07 | $7700.00 | Window Closed / Lapsed |