Patent US3153225A successfully refreshed from Google Patents.
US3449199A
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Helical reinforced materials and method of making same
Assignee: GEORGE N J MEAD
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Filing: 1964-02-13
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Granted: 1969-06-10
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Expires: 1984-02-13
Abstract
No abstract record available.
Inventors
- 👤 George N J Mead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:08
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/0007; B29; B29C; B29C53/00; B29C53/32; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/202; B29C70/205; B29C70/22; B29C70/222; B29C70/24; B60C9/0028; C; C07; C07C; C07C61/00; C07C61/12; C07C61/125; C07C61/135; B29K; B29K2021/00; B29L; B29L2030/00; B29L2031/00; B29L2031/709; B29L2031/7092; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10135; Y10T152/10171; Y10T152/1018; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/249921; Y10T428/249922
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |