US3445559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a self-locking structure
Assignee: Olympic Plastics Co Inc
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Filing: 1967-02-27
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Granted: 1969-05-20
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Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 David C Siteman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:25
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C45/00; B29C45/14; B29C45/14467; B29D; B29D1/00; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908; Y10S411/924; Y10S411/947
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125801A
Cited
US1355254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |