US735007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fresh-air inlet.
Assignee: Individual
•
Filing: 1902-05-21
•
Granted: 1903-07-28
•
Expires: 1922-05-21
Abstract
No abstract record available.
Inventors
- 👤 Robert S Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:12
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/12; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7722; Y10T137/7837; Y10T137/7897; Y10T137/7898; Y10T137/7903
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) | 1906-07-27 | 1907-01-26 | 1907-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-07-27 | 1911-01-26 | 1911-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-07-27 | 1915-01-26 | 1915-07-28 | $7700.00 | Window Closed / Lapsed |