US2227991A
Expired / Lapsed
US
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Composite products comprising polymerized chloroprene
Assignee: MARBON Corp
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Filing: 1939-02-10
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Granted: 1941-01-07
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Expires: 1959-02-10
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Winkelmann
- 👤 Eugene W Moffett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:02
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08J2311/00; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31707; Y10T428/31826; Y10T428/31833; Y10T428/31837
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) | 1944-01-07 | 1944-07-08 | 1945-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-07 | 1948-07-08 | 1949-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-07 | 1952-07-08 | 1953-01-07 | $7700.00 | Window Closed / Lapsed |