US3016635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
C-bar structure
Assignee: Individual
•
Filing: 1958-11-24
•
Granted: 1962-01-16
•
Expires: 1978-11-24
Abstract
No abstract record available.
Inventors
- 👤 William W Aston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8157; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE75252C
Cited
US458408A
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US521677A
Cited
US2412574A
Cited
US755952A
Cited
GB227981A
Cited
US1592304A
Cited
GB428179A
Cited
US2232672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |