US813918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubes, single or compound, with longitudinal ribs.
Assignee: Individual
•
Filing: 1899-12-29
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Granted: 1906-02-27
•
Expires: 1919-12-29
Abstract
No abstract record available.
Inventors
- 👤 Albert Schmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:01
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/40; F28D; F28D7/00; F28D7/10; F28D7/103; F28D7/106; F28F1/003; Y; Y10; Y10S; Y10S122/00; Y10S122/16; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49361; Y10T29/49377; Y10T29/49378; Y10T29/49384; Y10T29/49826; Y10T29/49879; Y10T428/00; Y10T428/12; Y10T428/12361; Y10T428/12389
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) | 1909-02-26 | 1909-08-28 | 1910-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-02-26 | 1913-08-28 | 1914-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-02-26 | 1917-08-28 | 1918-02-27 | $7700.00 | Window Closed / Lapsed |