US3269616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve stem and buton structure for dispensing aerosol formulations
Assignee: Union Carbide Corp
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Filing: 1964-12-24
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Granted: 1966-08-30
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Expires: 1984-12-24
Abstract
No abstract record available.
Inventors
- 👤 Robert D West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:49
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48; B65D83/16; B65D83/162
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
IN AN AEROSOL DISPENSING VALVE STRUCTURE WHEREIN INTERIOR PASSAGES IN A VALVE CHAMBER, A VALVE STEM AND A VALVE DISPENSING HEAD ARE COMPRISED IN A FLOW PATH THROUGH WHICH AN AEROSOL FORMULATION PASSES OUTWARD FROM AN AEROSOL CONTAINER INTERIOR TO A DISPENSING NOZZLE IN SAID VALVE DISPENSING HEAD, THE IMPROVEMENT CONSISTING OF THE TOTAL FLOW PATH HAVING RESPECTIVE INCREMENTAL CROSS-SECTIONAL AREAS ALONG THE OUTWARD FLOW DIRECTION SUCH THAT ANY SINGLE CROSS-SECTIONAL AREA AVAILABLE FOR FLOW OF AEROSOL FORMULATION THERETHROUGH IS AT THE MOST EQUAL TO THE IMMEDIATELY PRECEDING INCREMENTAL CROSS-SECTIONAL AREA.
References Cited (Backward Citations)
US3121517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |