Patent US3451506A successfully refreshed from Google Patents.
US3451506A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1967-10-13
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Granted: 1969-06-24
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Expires: 1987-10-13
Abstract
No abstract record available.
Inventors
- 👤 Vernon L Neal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:42
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/04; E06C1/08; E06C1/12; E06C1/125
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) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |