US3437786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic crawler
Assignee: Hoskins Manufacturing Co
•
Filing: 1966-02-21
•
Granted: 1969-04-08
•
Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Rene D Colinet
- 👤 James E Norcross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:34
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1965331A
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US2395723A
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US2892071A
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US3035156A
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US3084246A
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US3128368A
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US3164714A
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US3249733A
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US3235705A
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US3204082A
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US3193660A
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US3247357A
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US3303321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |