US3270515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dew collecting method and apparatus
Assignee: Melpar Inc
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Filing: 1965-08-09
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Granted: 1966-09-06
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Telkes Maria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:46
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF COLLECTING WATER FROM THE ATMOSPHERE COMPRISING THE STEPS OF PLACING A SHEET OF MATERIAL HAVING A RELATIVELY HIGH REFLECTIVITY AND LOW ABSORPTIVITY FOR RADIATION HAVING WAVELENGTHS IN THE RANGE OF 0.3 TO 2.0 MICRONS AND A RELATIVELY HIGH EMISSIVITY FOR RADIATION HAVING WAVELENGTHS IN THE RANGE OF 5 TO 30 MICRONS, ON A SUPPORTING SURFACE SUCH THAT THE PLANE OF SAID SHEET IS INCLINED TO SAID SUPPORTING SURFACE; DIRECTING THE ACCUMULATION OF CONDENSATION TOWARD ONE AREA OF SAID SHEET; AND COLLECTING SAID ACCUMULATED CONDENSATION FROM SAID ONE AREA.
Claim 2
Independent Claim
91 words
THE METHOD OF COLLECTING WATER FROM THE ATMOSPHERE COMPRISING THE STEPS OF PLACING A SHEET OF MATERIAL HAVING A RELATIVELY HIGH REFLECTIVITY AND LOW ABSORPTIVITY FOR RADIATION HAVING WAVELENGTHS IN THE RANGE OF 0.3 TO 2.0 MICRONS AND A RELATIVELY HIGH EMISSIVITY FOR RADIATION HAVING WAVELENGTHS IN THE RANGE OF 5 TO 30 MICRONS, ON A SUPPORTING SURFACE SUCH THAT THE PLANE OF SAID SHEET IS INCLINED TO SAID SUPPORTING SURFACE; DIRECTING THE ACCUMULATION OF CONDENSATION TOWARD ONE AREA OF SAID SHEET; AND COLLECTING SAID ACCUMULATED CONDENSATION FROM SAID ONE AREA.
References Cited (Backward Citations)
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 |