Patent US3283284A successfully refreshed from Google Patents.
US3283284A
Expired / Lapsed
US
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Electrical heating film
Assignee: Individual
•
Filing: 1962-01-12
•
Granted: 1966-11-01
•
Expires: 1982-01-12
Abstract
No abstract record available.
Inventors
- 👤 Eisler Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:21
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/54; H05B3/56; F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; F24D13/024; H05B3/02; H05B3/06; H05B3/10; H05B3/20; H05B3/22; H05B3/26; H05B3/565; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
AN ELECTRIC HEATING FILM CONSISTING AT LEAST OF AN ELECTRICALLY CONDUCTIVE FOIL HAVING NARROW ELONGATED OPENINGS THEREIN BY WHICH AT LEAST ONE MEANDER PATTERN IS DEFINED COMPRISING SUBSTANTIALLY PARALLEL ARMS AND BRIDGES JOINING THE ENDS OF THE ARMS, THE FOIL PATTERN CHARACTERISED BY AT LEAST ONE OF THE MARGINS OF THE FOIL BOUND-
Claim 2
Dependent Claim
53 words
AN ELECTRIC HEATING FILM CONSISTING AT LEAST OF AN ELECTRICALLY CONDUCTIVE FOIL HAVING NARROW ELONGATED OPENINGS THEREIN BY WHICH AT LEAST ONE MEANDER PATTERN IS DEFINED COMPRISING SUBSTANTIALLY PARALLEL ARMS AND BRIDGES JOINING THE ENDS OF THE ARMS, THE FOIL PATTERN CHARACTERISED BY AT LEAST ONE OF THE MARGINS OF THE FOIL BOUND-
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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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |