US893434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flanged metal pipe and method of making.
Assignee: WHITLOCK COIL PIPE Co
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Filing: 1906-01-12
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Granted: 1908-07-14
•
Expires: 1926-01-12
Abstract
No abstract record available.
Inventors
- 👤 Louis H Brinkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:40
CPC Classifications
B; B21; B21D; B21D19/00; B21D19/02; B21D19/04; B21D19/046; F; F16; F16L; F16L23/00; F16L23/02; F16L23/032
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) | 1911-07-14 | 1912-01-13 | 1912-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-07-14 | 1916-01-13 | 1916-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-07-14 | 1920-01-13 | 1920-07-14 | $7700.00 | Window Closed / Lapsed |