US3464715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: John Wood Co
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Filing: 1968-09-09
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Granted: 1969-09-02
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Expires: 1988-09-09
Abstract
No abstract record available.
Inventors
- 👤 Arne H Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:41
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/002; B62B3/02; B62B3/025; B62B2205/00; B62B2205/12
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) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |