US3268201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive opening pinch valve
Assignee: RKL CONTROLS Inc
•
Filing: 1962-11-16
•
Granted: 1966-08-23
•
Expires: 1982-11-16
Abstract
No abstract record available.
Inventors
- 👤 Robert K Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:49
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; F16K7/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A POSITIVE OPENING UNITARY ELASTOMERIC PINCH VALVE BODY COMPRISING A SUBSTANTIALLY CYLINDRICAL ELASTROMERIC BODY PORTION, RUBBER-COATED FABRIC LAYERS REINFORCING SAID BODY PORTION, A RUBBER-COATED FABRIC TAB ELEMENT, A RUBBER-COATED FABRIC BELLY BAND, SAID BELLY BAND OVERLYING A PORTION OF SAID TAB ELEMENT EXPOSING AT LEAST ONE TAB,
Claim 2
Dependent Claim
47 words
A POSITIVE OPENING UNITARY ELASTOMERIC PINCH VALVE BODY COMPRISING A SUBSTANTIALLY CYLINDRICAL ELASTROMERIC BODY PORTION, RUBBER-COATED FABRIC LAYERS REINFORCING SAID BODY PORTION, A RUBBER-COATED FABRIC TAB ELEMENT, A RUBBER-COATED FABRIC BELLY BAND, SAID BELLY BAND OVERLYING A PORTION OF SAID TAB ELEMENT EXPOSING AT LEAST ONE TAB,
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |