US3256384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door for a shielding enclosure
Assignee: Individual
•
Filing: 1963-08-07
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Granted: 1966-06-14
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Expires: 1983-08-07
Abstract
No abstract record available.
Inventors
- 👤 Erik A Lindgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:56
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; H05K9/0016; E; E06; E06B; E06B5/00; E06B5/10; E06B5/18; Y; Y10; Y10S; Y10S55/00; Y10S55/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN COMBINATION WITH A PLURALITY OF PREFORMED ELECTRICALLY CONDUCTIVE PANELS FORMING AN ELECTRICAL ISOLATION ROOM, AN ENTRANCE DOOR SLIDABLY RETAINED IN ONE SIDE WALL OF THE ROOM COMPRISING A RECTANGULAR FRAME AND SHIELDING MATERIAL SUPPORTED ON OPPOSITE SIDES THEREOF, A GROOVE CENTRALLY FORMED IN EACH OF THREE OF THE MARGINAL EDGES OF SAID FRAME, CONTACT SPRING FINGERS SECURED IN PAIRS TO THE MARGINAL EDGES HAVING THE GROOVES THEREIN IN ELECTRICAL CONTACT WITH THE RESPECTIVE SIDES OF SHIELDING MATERIAL WITH THE ENDS OF SAID FINGERS EXTENDING INTO SAID GROOVE FROM OPPOSITE SIDES THEREOF, A CONTACT PLATE SECURED TO THE FOURTH MARGINAL EDGE OF THE DOOR IN RELATIONSHIP ELECTRICALLY BRIDGING THE RESPECTIVE SIDES OF THE SHIELDING MATERIAL, A PORTION OF SAID CONTACT PLATE EXTENDING PAST ONE OF THE SIDES OF THE DOOR, CONTACT MEANS SECURED TO THE SIDE WALL OF THE ROOM TO ENGAGE SAID PAIRS OF CONTACT FINGERS IN SAID GROOVES,
Claim 2
Dependent Claim
150 words
IN COMBINATION WITH A PLURALITY OF PREFORMED ELECTRICALLY CONDUCTIVE PANELS FORMING AN ELECTRICAL ISOLATION ROOM, AN ENTRANCE DOOR SLIDABLY RETAINED IN ONE SIDE WALL OF THE ROOM COMPRISING A RECTANGULAR FRAME AND SHIELDING MATERIAL SUPPORTED ON OPPOSITE SIDES THEREOF, A GROOVE CENTRALLY FORMED IN EACH OF THREE OF THE MARGINAL EDGES OF SAID FRAME, CONTACT SPRING FINGERS SECURED IN PAIRS TO THE MARGINAL EDGES HAVING THE GROOVES THEREIN IN ELECTRICAL CONTACT WITH THE RESPECTIVE SIDES OF SHIELDING MATERIAL WITH THE ENDS OF SAID FINGERS EXTENDING INTO SAID GROOVE FROM OPPOSITE SIDES THEREOF, A CONTACT PLATE SECURED TO THE FOURTH MARGINAL EDGE OF THE DOOR IN RELATIONSHIP ELECTRICALLY BRIDGING THE RESPECTIVE SIDES OF THE SHIELDING MATERIAL, A PORTION OF SAID CONTACT PLATE EXTENDING PAST ONE OF THE SIDES OF THE DOOR, CONTACT MEANS SECURED TO THE SIDE WALL OF THE ROOM TO ENGAGE SAID PAIRS OF CONTACT FINGERS IN SAID GROOVES,
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |