US703936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing valve-gear.
Assignee: EMMETT E SCANTLIN
•
Filing: 1902-03-04
•
Granted: 1902-07-01
•
Expires: 1922-03-04
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Leftwich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:26
CPC Classifications
F; F01; F01L; F01L29/00; F01L29/04; Y; Y10; Y10T; Y10T74/00; Y10T74/16; Y10T74/1625; Y10T74/1642; Y10T74/18; Y10T74/18056; Y10T74/18176
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) | 1905-06-30 | 1905-12-30 | 1906-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-06-30 | 1909-12-30 | 1910-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-06-30 | 1913-12-30 | 1914-07-01 | $7700.00 | Window Closed / Lapsed |