Patent US2500784A successfully refreshed from Google Patents.
Patent US743618A successfully refreshed from Google Patents.
US743618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic operating flush-tank for closets.
Assignee: Individual
•
Filing: 1900-06-28
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Granted: 1903-11-10
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Expires: 1920-06-28
Abstract
No abstract record available.
Inventors
- 👤 Mark Connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:41
CPC Classifications
E; E03; E03F; E03F9/00; E03F9/007; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/2802; Y10T137/2815; Y10T137/4456; Y10T137/4463; Y10T137/4553; Y10T137/4568
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) | 1906-11-09 | 1907-05-11 | 1907-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-11-09 | 1911-05-11 | 1911-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-11-09 | 1915-05-11 | 1915-11-10 | $7700.00 | Window Closed / Lapsed |