US2737812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipette
Assignee: Individual
•
Filing: 1952-06-23
•
Granted: 1956-03-13
•
Expires: 1972-06-23
Abstract
No abstract record available.
Inventors
- 👤 Paul O K Haak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:32
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/38; B; B01; B01L; B01L3/00; B01L3/02; B01L3/021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A PIPETTE COMPRISING A TUBE, A MIXING CHAMBER FORMED IN SAID TUBE, SAID TUBE CONTAINING A CAPILLARY INTAKE
Claim 2
Dependent Claim
18 words
A PIPETTE COMPRISING A TUBE, A MIXING CHAMBER FORMED IN SAID TUBE, SAID TUBE CONTAINING A CAPILLARY INTAKE
References Cited (Backward Citations)
US553044A
Cited
US694530A
Cited
US1433075A
Cited
US1594370A
Cited
US1678540A
Cited
US1791829A
Cited
US2104325A
Cited
US2158102A
Cited
US2638787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |