US2473284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for molding sealing rings
Assignee: Weatherhead Co
•
Filing: 1945-07-26
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Granted: 1949-06-14
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Expires: 1965-07-26
Abstract
No abstract record available.
Inventors
- 👤 Harold J Knaggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:22
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0053; B29C; B29C33/00; B29C33/0055; B29C43/00; B29C43/32; B29C43/36; B29L; B29L2031/00; B29L2031/26; B29L2031/709; B29L2031/7096; Y; Y10; Y10S; Y10S264/00; Y10S264/67; Y10S277/00; Y10S277/924; Y10S425/00; Y10S425/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1658567A
Cited
US1683755A
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US1904845A
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US2251858A
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US2208620A
Cited
US2330762A
Cited
US2349170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |