US2921832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of vaporizing
Assignee: Individual
•
Filing: 1956-07-11
•
Granted: 1960-01-19
•
Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 James H Holther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:41
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD OF INTRODUCING A VAPOR OF A VOLATILE LIQUID INTO A ROOM SPACE, CHARACTERIZED BY THE USE OF A RECIRCULATING COMPRESSING BLOWER MEANS FOR DISCHARGING A STREAM OF AIR INTO THE ROOM SPACE, SAID METHOD INCLUDING THE STEPS OF: CONFINING SAID DISCHARGE STREAM OF AIR IN A REGION AND PROVIDING NUMEROUS SMALL OPENINGS FOR RESTRICTED RELEASE OF THE AIR STREAM FROM THE REGION INTO THE ARMOSPHERE OF THE ROOM THEREBY TO PROVIDE RESISTANCE TO DISCHARGE OF AIR FROM THE REGION TO MAINTAIN THE PRESSURE OF THE AIR STREAM IN THE REGION ABOVE ATMOSPHERIC PRESSURE FOR CONSERVING THE HEAT OF COMPRESSION OF THE AIR STREAM TO MAINTAIN A TEMPERATURE OF AT LEAST 110* F. IN THE REGION, RESTRICTING THE AIR STREAM IN SAID REGION
Claim 2
Independent Claim
124 words
A METHOD OF INTRODUCING A VAPOR OF A VOLATILE LIQUID INTO A ROOM SPACE, CHARACTERIZED BY THE USE OF A RECIRCULATING COMPRESSING BLOWER MEANS FOR DISCHARGING A STREAM OF AIR INTO THE ROOM SPACE, SAID METHOD INCLUDING THE STEPS OF: CONFINING SAID DISCHARGE STREAM OF AIR IN A REGION AND PROVIDING NUMEROUS SMALL OPENINGS FOR RESTRICTED RELEASE OF THE AIR STREAM FROM THE REGION INTO THE ARMOSPHERE OF THE ROOM THEREBY TO PROVIDE RESISTANCE TO DISCHARGE OF AIR FROM THE REGION TO MAINTAIN THE PRESSURE OF THE AIR STREAM IN THE REGION ABOVE ATMOSPHERIC PRESSURE FOR CONSERVING THE HEAT OF COMPRESSION OF THE AIR STREAM TO MAINTAIN A TEMPERATURE OF AT LEAST 110* F. IN THE REGION, RESTRICTING THE AIR STREAM IN SAID REGION
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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) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |