US2646595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for molding omicron-ring gaskets
Assignee: Johns Manville Corp
•
Filing: 1949-01-28
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Granted: 1953-07-28
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Expires: 1969-01-28
Abstract
No abstract record available.
Inventors
- 👤 George P Leistensnider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:53
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0053; B29C; B29C31/00; B29C31/04; B29C31/08; B29C43/00; B29C43/02; B29C43/027; B29C43/32; B29C43/34; B29K; B29K2021/00; B29K2621/00; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10S; Y10S264/00; Y10S264/67; Y10S425/00; Y10S425/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1918505A
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US2158044A
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US1948344A
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US2130254A
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US2093909A
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US2139541A
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US2103860A
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US2202875A
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US2445742A
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US2450448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |