Patent US5431665A successfully refreshed from Google Patents.
Patent RU2026640C1 successfully refreshed from Google Patents.
US1280909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of pipes.
Assignee: METALCO Co
•
Filing: 1916-02-05
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Granted: 1918-10-08
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Expires: 1936-02-05
Abstract
No abstract record available.
Inventors
- 👤 Charles M Wales
- 👤 Charles Baskerville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:23
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49391; Y10T29/49801; Y10T428/00; Y10T428/12; Y10T428/12292; Y10T428/12444; Y10T428/12486
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) | 1921-10-07 | 1922-04-08 | 1922-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-10-07 | 1926-04-08 | 1926-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-10-07 | 1930-04-08 | 1930-10-08 | $7700.00 | Window Closed / Lapsed |