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US2686959A
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US
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Assignee: Individual
•
Filing: 1951-04-02
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Granted: 1954-08-24
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Expires: 1971-04-02
Abstract
No abstract record available.
Inventors
- 👤 Wayne C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:39
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/04; B; B65; B65B; B65B43/00; B65B43/26; E04D; E04D15/00; E04D15/02; E04D15/025; G; G01; G01B; G01B3/00; G01B3/02; G01B3/04; G01B3/08
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) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |