US3068763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Top seal
Assignee: HARZA PATENTS
•
Filing: 1958-10-06
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Granted: 1962-12-18
•
Expires: 1978-10-06
Abstract
No abstract record available.
Inventors
- 👤 Richard D Harza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:15
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1586326A
Cited
US2025209A
Cited
US2194383A
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US2315915A
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US2400493A
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US2619884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |