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US2029173A
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Sealing ring
Assignee: PITTSBURGH STEEL DRUM Co
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Filing: 1933-02-02
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Granted: 1936-01-28
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Expires: 1953-02-02
Abstract
No abstract record available.
Inventors
- 👤 Albert E Jesser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:42
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/32; B65D2543/00; B65D2543/00009; B65D2543/00953; B65D2543/00962; B65D2543/00972; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205
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) | 1939-01-27 | 1939-07-29 | 1940-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-27 | 1943-07-29 | 1944-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-27 | 1947-07-29 | 1948-01-28 | $7700.00 | Window Closed / Lapsed |