Patent US3361205A successfully refreshed from Google Patents.
US3361205A
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US
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Method and system for dissolving paraffin
Assignee: Hydrasearch Co Inc
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Filing: 1965-07-28
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Granted: 1968-01-02
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Expires: 1985-07-28
Abstract
No abstract record available.
Inventors
- 👤 Alton L Waldron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:26
CPC Classifications
E; E21; E21B; E21B37/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2300348A
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US2431769A
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US2704979A
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US2795238A
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US3014531A
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US3018786A
Cited
US3102590A
Cited
US3169587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |