US2822573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing foam rubber slabs or contoured pads
Assignee: National Automotive Fibres Inc
•
Filing: 1955-01-17
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Granted: 1958-02-11
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Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 Adam S Wasniewski
- 👤 Russell L Mains
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:21
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/321; B29C2793/00; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2648619A
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US2641296A
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US2703909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |