Patent US2847757A successfully refreshed from Google Patents.
US2847757A
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Method of inserting and sealing a closure in a plug hole
Assignee: MADISON FAESSLER TOOL CO
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Filing: 1955-03-17
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Granted: 1958-08-19
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Expires: 1975-03-17
Abstract
No abstract record available.
Inventors
- 👤 Mock Luther Roy
- 👤 Eldo K Koppelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:59
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1101084A
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US1410464A
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US2649889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |