US3217542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dew sensing device
Assignee: Iowa State University Research Foundation Inc
•
Filing: 1963-04-08
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Granted: 1965-11-16
•
Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Browning John Artie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:19
CPC Classifications
G; G01; G01N; G01N19/00; G01N19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A DEW SENSING DEVICE, COMPRISING A STANDARD, A RING-LIKE BODY POSITIONABLY MOUNTED ON SAID STANDARD AND HAVING SPACED-APART SUPPORTING PORTIONS, AN ELONGATED ANIMAL MEMBRANE SHAPED TO EXPAND UPON DEPOSITION OF DEW THEREON CONNECTED AT ONE END TO ONE OF SAID SUPPORTING PORTIONS, AN ELECTRICAL SWITCH INTERCONNECTED BETWEEN THE OTHER END OF SAID MEMBRANE AND THE OTHER OF SAID SUPPORTING PORTIONS, SIGNAL MEANS INCLUDING A SOURCE OF ELECTRICITY COUPLED TO SAID SWITCH TO REPORT THE CONDITION OF SAID SWITCH AND THEREBY THE DEPOSITION OF DEW ON SAID MEMBRANE, CLAMP MEANS INTERPOSED BETWEEN SAID BODY AND STANDARD FOR VERTICALLY POSITIONING SAID BODY,
Claim 2
Dependent Claim
100 words
A DEW SENSING DEVICE, COMPRISING A STANDARD, A RING-LIKE BODY POSITIONABLY MOUNTED ON SAID STANDARD AND HAVING SPACED-APART SUPPORTING PORTIONS, AN ELONGATED ANIMAL MEMBRANE SHAPED TO EXPAND UPON DEPOSITION OF DEW THEREON CONNECTED AT ONE END TO ONE OF SAID SUPPORTING PORTIONS, AN ELECTRICAL SWITCH INTERCONNECTED BETWEEN THE OTHER END OF SAID MEMBRANE AND THE OTHER OF SAID SUPPORTING PORTIONS, SIGNAL MEANS INCLUDING A SOURCE OF ELECTRICITY COUPLED TO SAID SWITCH TO REPORT THE CONDITION OF SAID SWITCH AND THEREBY THE DEPOSITION OF DEW ON SAID MEMBRANE, CLAMP MEANS INTERPOSED BETWEEN SAID BODY AND STANDARD FOR VERTICALLY POSITIONING SAID BODY,
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |