Patent US753555A successfully refreshed from Google Patents.
US753555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thomas douglas and geoege lewis conboy
Assignee: —
•
Filing: —
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Granted: 1904-03-01
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Expires: 1921-03-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:44
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49361; Y10T29/49396
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) | 1907-03-01 | 1907-08-31 | 1908-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-03-01 | 1911-08-31 | 1912-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-03-01 | 1915-08-31 | 1916-03-01 | $7700.00 | Window Closed / Lapsed |