Patent US3900700A successfully refreshed from Google Patents.
US3900700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective enclosure
Assignee: CMC Electronics Inc
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Filing: 1974-02-04
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Granted: 1975-08-19
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Expires: 1994-02-04
Abstract
Abstract In enclosures designed to protect electronic or other equipments from the elements when these equipments are required to operate outdoors, considerable difficulty is experienced in dissipating heat generated internally or received from direct sun rays. This invention is a protective enclosure which is constructed in such a manner that it protects the enclosed equipment from rain or splash water and dissipates internally generated heat and heat from direct sun rays.
Inventors
- 👤 Fernand W Gaudet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:01
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A protective enclosure for electronic or other equipment comprising a rigid back plate provided with means for mounting the back plate and for mounting the protected equipment on the back plate and for mounting shields to the back plate; inner and outer metal shields held together as one unit by rivetting and held apart to allow for air circulation by spacers; a metal cover complete with vertical lip which fits over the inner shield and is welded to the back plate; ventilation holes cut in the inner shield below the top cover lip with the top cover in place.
Claim 2
Dependent Claim
99 words
A protective enclosure for electronic or other equipment comprising a rigid back plate provided with means for mounting the back plate and for mounting the protected equipment on the back plate and for mounting shields to the back plate; inner and outer metal shields held together as one unit by rivetting and held apart to allow for air circulation by spacers; a metal cover complete with vertical lip which fits over the inner shield and is welded to the back plate; ventilation holes cut in the inner shield below the top cover lip with the top cover in place.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |