US3233078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic device for preventing ice formation in gutters and downspouts
Assignee: Individual
•
Filing: 1963-05-06
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Granted: 1966-02-01
•
Expires: 1983-05-06
Abstract
No abstract record available.
Inventors
- 👤 Siemianowski Roman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:22
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/076; E04D13/0762; E04D13/08; H; H05; H05B; H05B3/00; E04D2013/088; H05B2214/00; H05B2214/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
IN COMBINATION WITH A DRAIN GUTTER HAVING AN ELECTRIC HEATING ELEMENT CONNECTABLE WITH A SOURCE OF ELECTRIC ENERGY IN ELECTRIC CIRCUIT RELATION FOR INHIBITING THE FORMATION OF ICE AND IN SAID GUTTER, AN ELECTRICAL CIRCUIT, AN ELECTROLYTIC SWITCH DEVICE SENSITIVE TO THE PRESENCE OF WATER, SAID ELECTROLYTIC SWITCH DEVICE BEING POSITIONED IN EXPOSED RELATION TO TO THE ATMOSPHERE IN SAID DRAIN GUTTER WHEREBY WATER CONTACTING SAID DEVICE COMPLETES THE FORMATION OF AN ELECTROLYTIC CELL THEREBY CLOSING SAID ELECTRIC CIRCUIT FOR ENERGIZING SAID HEATING ELEMENT, WHEN WATER RISES IN SAID DRAIN GUTTER, AND A HOUSING FOR SAID ELECTROLYTIC SWITCH HAVING TOP AND SIDE WALLS ONLY.
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |