Patent US2170853A successfully refreshed from Google Patents.
US2170853A
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Method of making pipe fittings
Assignee: American Radiator and Standard Sanitary Corp
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Filing: 1937-10-09
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Granted: 1939-08-29
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Expires: 1957-10-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward S Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:43
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/14; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; B21C37/29; F; F16; F16L; F16L41/00; F16L41/02; F16L41/021; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49442
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) | 1942-08-28 | 1943-02-27 | 1943-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-08-28 | 1947-02-27 | 1947-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-08-28 | 1951-02-27 | 1951-08-29 | $7700.00 | Window Closed / Lapsed |