Patent US1986985A successfully refreshed from Google Patents.
US1986985A
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US
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Coated metallic centrifugal pipe mold
Assignee: United States Pipe and Foundry Co LLC
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Filing: 1934-03-22
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Granted: 1935-01-08
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Expires: 1954-03-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Stuart
- 👤 Horace S Hunt
- 👤 Paul L Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:49
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D13/101; B22D13/102; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259
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) | 1938-01-07 | 1938-07-09 | 1939-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-01-07 | 1942-07-09 | 1943-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-01-07 | 1946-07-09 | 1947-01-08 | $7700.00 | Window Closed / Lapsed |