Patent US2199109A successfully refreshed from Google Patents.
US2199109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cleaning device
Assignee: BOILER TUBE SKIVERS Inc
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Filing: 1938-10-31
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Granted: 1940-04-30
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Expires: 1958-10-31
Abstract
No abstract record available.
Inventors
- 👤 Maxwell Clyde
- 👤 Horace E Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:41
CPC Classifications
F; F28; F28G; F28G3/00; F28G3/10; F28G3/14; B; B23; B23D; B23D79/00; B23D79/02; B23D79/06; Y; Y10; Y10T; Y10T29/00; Y10T29/45; Y10T29/4506; Y10T29/4511
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) | 1943-04-30 | 1943-10-30 | 1944-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-30 | 1947-10-30 | 1948-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-30 | 1951-10-30 | 1952-04-30 | $7700.00 | Window Closed / Lapsed |