US1509810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating system
Assignee: IRVING REICHNER L
•
Filing: 1922-08-04
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Granted: 1924-09-23
•
Expires: 1942-08-04
Abstract
No abstract record available.
Inventors
- 👤 John F Macindoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:52
CPC Classifications
F; F24; F24D; F24D3/00; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/066; F24D19/00; F24D19/10; F24D19/1006; F24D19/1009; F24H; F24H1/00; F24H1/22; F24H1/38; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7779; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7939
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) | 1927-09-23 | 1928-03-24 | 1928-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-09-23 | 1932-03-24 | 1932-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-09-23 | 1936-03-24 | 1936-09-23 | $7700.00 | Window Closed / Lapsed |