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Patent US1894835A successfully refreshed from Google Patents.
US1894835A
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Method of and apparatus for joining pipes
Assignee: Individual
•
Filing: 1928-09-13
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Granted: 1933-01-17
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Expires: 1948-09-13
Abstract
No abstract record available.
Inventors
- 👤 Frank H Smith
- 👤 Henry A Stringfellow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:54
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/10; B29C65/18; B29C65/24; B29C65/28; B29C65/78; B29C65/7802; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/09; B29C65/30; B29C65/305; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/53; Y10T29/53652; Y10T29/5367; Y10T29/53678; Y10T29/53796; Y10T29/53896
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) | 1936-01-17 | 1936-07-18 | 1937-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-17 | 1940-07-18 | 1941-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-17 | 1944-07-18 | 1945-01-17 | $7700.00 | Window Closed / Lapsed |