US3399705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-staking insert
Assignee: Russell Burdsall and Ward Corp
•
Filing: 1966-02-10
•
Granted: 1968-09-03
•
Expires: 1986-02-10
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Breed
- 👤 Edward A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:09
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; B; B21; B21K; B21K1/00; B21K1/56; B21K1/58; B21K1/60; F16B; F16B37/00; F16B37/04; F16B37/06; F16B37/062; F16B37/068; F16L25/00; F16L25/0027; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49908; Y10T29/49915; Y10T29/49925; Y10T29/49934
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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |