US1292877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and ventilating apparatus.
Assignee: RECTOR GAS LAMP Co
•
Filing: 1910-09-26
•
Granted: 1919-01-28
•
Expires: 1930-09-26
Abstract
No abstract record available.
Inventors
- 👤 Alcorn Rector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:58
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/006
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) | 1922-01-27 | 1922-07-29 | 1923-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-01-27 | 1926-07-29 | 1927-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-01-27 | 1930-07-29 | 1931-01-28 | $7700.00 | Window Closed / Lapsed |