Patent US3693153A successfully refreshed from Google Patents.
Patent US2999499A successfully refreshed from Google Patents.
US2999499A
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Assignee: Bayer Corp
•
Filing: 1958-07-11
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Granted: 1961-09-12
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Expires: 1978-07-11
Abstract
No abstract record available.
Inventors
- 👤 Richard H Willet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:19
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/24; A61M5/00; A61M5/14; A61M5/1407; A61M5/1408; A61M2039/242; A61M2039/2473; A61M2039/248; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1220872A
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US1880948A
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US2262169A
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US2121354A
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US2343828A
Cited
US2797703A
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US2866457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |