US3270553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rheometer
Assignee: Monsanto Co
•
Filing: 1964-07-13
•
Granted: 1966-09-06
•
Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Richard L Ballman
- 👤 Albert W Wotring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:37
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/02; G01N11/04; G01N11/08; G01N33/00; G01N33/44; G01N33/442
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A CAPILLARY EXTRUSION RHEOMETER WHICH COMPRISES: A HOUSING DEFINING AN EXTRUSION CHAMBER; A CAPILLARY DIE DISPOSED IN ONE END OF SAID CHAMBER RESTRICTING THE OUTLET THEREOF; A PLUNGER DISPOSED TO RECIPROCALLY MOVE IN SAID CHAMBER CONSISTING OF: A FIRST MEMBER HAVING A SURFACE ADAPTED TO SLIDABLY ENGAGE THE WALLS OF SAID CHAMBER, AND A SECOND MEMBER CONCENTRICALLY DISPOSED WITHIN SAID FIRST MEMBER; MEANS FOR DRIVING SAID FIRST AND SECOND MEMBERS IN UNISON RELATIONSHIP; AND FORCE MEASURING MEANS ENGAGING SAID SECOND MEMBER.
Claim 2
Dependent Claim
81 words
A CAPILLARY EXTRUSION RHEOMETER WHICH COMPRISES: A HOUSING DEFINING AN EXTRUSION CHAMBER; A CAPILLARY DIE DISPOSED IN ONE END OF SAID CHAMBER RESTRICTING THE OUTLET THEREOF; A PLUNGER DISPOSED TO RECIPROCALLY MOVE IN SAID CHAMBER CONSISTING OF: A FIRST MEMBER HAVING A SURFACE ADAPTED TO SLIDABLY ENGAGE THE WALLS OF SAID CHAMBER, AND A SECOND MEMBER CONCENTRICALLY DISPOSED WITHIN SAID FIRST MEMBER; MEANS FOR DRIVING SAID FIRST AND SECOND MEMBERS IN UNISON RELATIONSHIP; AND FORCE MEASURING MEANS ENGAGING SAID SECOND MEMBER.
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |