Patent US3387077A successfully refreshed from Google Patents.
US3387077A
Expired / Lapsed
US
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Method for the production of open-work structures
Assignee: TJ Smith and Nephew Ltd
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Filing: 1964-08-21
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Granted: 1968-06-04
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Expires: 1984-08-21
Abstract
No abstract record available.
Inventors
- 👤 Sammons William Albert
- 👤 May Albert Neville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:36
CPC Classifications
B; B29; B29D; B29D28/00; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/16; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |