US2998188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Mast Development Co
•
Filing: 1957-02-18
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Granted: 1961-08-29
•
Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Gifford M Mast
- 👤 Wright K Gannett
- 👤 Wesley A Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:01
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/22; B67D7/221; G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/102; G06M1/104; G06M1/28; G06M1/34; G06M1/36; G06M1/363; G06M3/00; G06M3/02; G06M3/021; G06M3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1330653A
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FR632525A
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US2206724A
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US729253A
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US1189279A
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US1902066A
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US2127244A
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US2140839A
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US2768337A
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US2792536A
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US2784874A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |