Patent US3483643A successfully refreshed from Google Patents.
US3483643A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1967-11-22
•
Granted: 1969-12-16
•
Expires: 1987-11-22
Abstract
No abstract record available.
Inventors
- 👤 Erickson Wey Wenzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:58
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/10; E04D13/106; E01; E01H; E01H5/00; E01H5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US403661A
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US534257A
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US615036A
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US2710465A
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US289131A
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US842704A
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US1100197A
Cited
US3218738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |