US661620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube-expander.
Assignee: Individual
•
Filing: 1900-01-19
•
Granted: 1900-11-13
•
Expires: 1920-01-19
Abstract
No abstract record available.
Inventors
- 👤 Victor E Rumbarger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:31
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/065; Y; Y10; Y10T; Y10T403/00; Y10T403/53; Y10T403/535; Y10T403/70; Y10T403/7062; Y10T403/7075; Y10T403/7077
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) | 1903-11-13 | 1904-05-14 | 1904-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-11-13 | 1908-05-14 | 1908-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-11-13 | 1912-05-14 | 1912-11-13 | $7700.00 | Window Closed / Lapsed |