Patent US1949823A successfully refreshed from Google Patents.
US1949823A
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Method of molding a rubber valve on the center pin of pneumatic valve insides
Assignee: Bridgeport Brass Co
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Filing: 1932-04-30
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Granted: 1934-03-06
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Expires: 1952-04-30
Abstract
No abstract record available.
Inventors
- 👤 Lewis C Broecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:17
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/18; B29K; B29K2105/00; B29K2105/25; B29K2105/253; B29K2105/258; B29L; B29L2031/00; B29L2031/748; B29L2031/7506; Y; Y10; Y10S; Y10S264/00; Y10S264/76
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) | 1937-03-05 | 1937-09-04 | 1938-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-03-05 | 1941-09-04 | 1942-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-03-05 | 1945-09-04 | 1946-03-06 | $7700.00 | Window Closed / Lapsed |