Patent US2670600A successfully refreshed from Google Patents.
Patent US3480400A successfully refreshed from Google Patents.
US3480400A
Expired / Lapsed
US
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Placement device
Assignee: Bayer Corp
•
Filing: 1966-03-21
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Granted: 1969-11-25
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Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Louis L Csizmas
- 👤 Virendra Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:08
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0289; B01L3/0293; G; G01; G01N; G01N35/00; G01N35/02; G01N35/04; B01L2200/00; B01L2200/16; B01L2300/00; B01L2300/08; B01L2300/0809; B01L2300/0825; B01L3/0241; B01L3/0258; B01L9/00; B01L9/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092938A
Cited
US2422584A
Cited
US2639050A
Cited
US3151754A
Cited
US3378347A
Cited
US3378481A
Cited
US3401087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |