US3226780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means
Assignee: LANDIS ENGINEERING Inc
•
Filing: 1964-07-06
•
Granted: 1966-01-04
•
Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Robert L Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:32
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2318; E06B7/2305; E06B7/2307; E06B7/2309
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN SEALING CONSTRUCTION OF THE CLASS DESCRIBED, IN COMBINATION: FRAMING MEANS DEFINING AN OPENING; FIRST AND SECOND DOORS HAVING SEALING MEANS ON AT LEAST A PORTION OF THEIR PERIPHERIES, SAID DOORS BEING MOVABLE LATERALLY INTO ADJACENT ALIGNED POSITIONS AND IN ABUTTING SEALING CONTACT WITH AT LEAST THE GREATER PORTION OF THE PERIPHERY OF SAID FRAMING MEANS; A BACKING MEMBER CARRIED BY THE LEADING EDGE OF SAID FIRST DOOR AND PROJECTING BEYOND ONE EDGE THEREOF AND BEHIND THE LEADING EDGE OF SAID SECOND DOOR WHEN SAID DOORS ARE BROUGHT INTO ADJACENT ALIGNED POSITIONS, SAID BACKING MEMBER ALSO INCLUDING AT LEAST A PORTION WHICH LIES WITHIN THE PLANE OF SAID FRAMING MEANS; AND A FEATHERED EDGE PORTION CARRIED BY THE SEALING MEANS ON SAID FIRST DOOR WHICH EXTENDS ABOVE SAID BACKING MEMBER AND LIES PARALLEL WITH SAID FRAMING MEANS WHEN THE DOORS ARE BROUGH INTO ALIGNED SEALING ENGAGEMENT.
Claim 2
Dependent Claim
146 words
IN SEALING CONSTRUCTION OF THE CLASS DESCRIBED, IN COMBINATION: FRAMING MEANS DEFINING AN OPENING; FIRST AND SECOND DOORS HAVING SEALING MEANS ON AT LEAST A PORTION OF THEIR PERIPHERIES, SAID DOORS BEING MOVABLE LATERALLY INTO ADJACENT ALIGNED POSITIONS AND IN ABUTTING SEALING CONTACT WITH AT LEAST THE GREATER PORTION OF THE PERIPHERY OF SAID FRAMING MEANS; A BACKING MEMBER CARRIED BY THE LEADING EDGE OF SAID FIRST DOOR AND PROJECTING BEYOND ONE EDGE THEREOF AND BEHIND THE LEADING EDGE OF SAID SECOND DOOR WHEN SAID DOORS ARE BROUGHT INTO ADJACENT ALIGNED POSITIONS, SAID BACKING MEMBER ALSO INCLUDING AT LEAST A PORTION WHICH LIES WITHIN THE PLANE OF SAID FRAMING MEANS; AND A FEATHERED EDGE PORTION CARRIED BY THE SEALING MEANS ON SAID FIRST DOOR WHICH EXTENDS ABOVE SAID BACKING MEMBER AND LIES PARALLEL WITH SAID FRAMING MEANS WHEN THE DOORS ARE BROUGH INTO ALIGNED SEALING ENGAGEMENT.
References Cited (Backward Citations)
FR752640A
Cited
US2101465A
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US2332195A
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US2379103A
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US2720011A
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US2624596A
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US2811406A
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US3117312A
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US3161925A
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |