Patent US2717957A successfully refreshed from Google Patents.
US2419922A
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Method of producing reinforcing elements
Assignee: EIDP Inc
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Filing: 1943-07-02
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Granted: 1947-04-29
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Expires: 1963-07-02
Abstract
No abstract record available.
Inventors
- 👤 Emerson A Tippetts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/24; C; C08; C08J; C08J5/00; C08J5/04; C08J5/045; C08J5/06; C08J2321/00; C08J2321/02; Y; Y10; Y10S; Y10S57/00; Y10S57/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1729272A
Cited
US1747533A
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US2098038A
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US2220958A
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US2188283A
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US2129626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |