US3017842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulkhead
Assignee: Evans Products Co
•
Filing: 1957-07-01
•
Granted: 1962-01-23
•
Expires: 1977-07-01
Abstract
No abstract record available.
Inventors
- 👤 Nampa Sulo Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:53
CPC Classifications
B; B61; B61D; B61D19/00; B61D19/003; B61D19/008; B61D45/00; B61D45/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US788761A
Cited
US1388819A
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US2063434A
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US2071802A
Cited
US2227807A
Cited
US2605064A
Cited
US2681699A
Cited
US2772641A
Cited
US2866419A
Cited
US2786229A
Cited
US2719322A
Cited
US2752864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |