US1329052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater
Assignee: Individual
•
Filing: 1916-02-23
•
Granted: 1920-01-27
•
Expires: 1936-02-23
Abstract
No abstract record available.
Inventors
- 👤 Stanislaw J Lukaszewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:30
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/18; F24H9/1809; F24H9/1832; F24H9/1836; F24H1/00; F24H1/10; F24H1/12; F24H1/14; F24H1/16; F24H1/165
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) | 1923-01-26 | 1923-07-28 | 1924-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-01-26 | 1927-07-28 | 1928-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-01-26 | 1931-07-28 | 1932-01-27 | $7700.00 | Window Closed / Lapsed |