US3500689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipette construction
Assignee: American Hospital Supply Corp
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Filing: 1968-03-18
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Granted: 1970-03-17
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Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 John G Band
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:36
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/54; B01L9/543; B01L3/00; B01L3/02; B01L3/021; A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31525; A61M5/31531; A61M5/32; A61M5/34; A61M5/346; A61M5/347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |