Patent US3863641A successfully refreshed from Google Patents.
Patent US3048848A successfully refreshed from Google Patents.
US3048848A
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US
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Method and apparatus for chart recording
Assignee: RUST IND Co Inc
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Filing: 1959-01-08
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Granted: 1962-08-07
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Expires: 1979-01-08
Abstract
No abstract record available.
Inventors
- 👤 Richard W May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:34
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1124820A
Cited
FR421703A
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US1255202A
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US1299427A
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US1847918A
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US2108089A
Cited
US2034543A
Cited
US2169230A
Cited
US2299693A
Cited
US2669501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |