Patent JPS63274149A successfully refreshed from Google Patents.
US3303620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joining sheet materials
Assignee: Imperial Chemical Industries Ltd
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Filing: 1963-12-09
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Granted: 1967-02-14
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Dawson William
- 👤 Kirby David Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:32
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A GENERALLY RECTANGULAR PANEL OF A SYNTHETIC THERMOPLASTIC POLYMERIC MATERIAL FOR FASTENING TO A SUPPORTING STRUCTURE IN COMBINATION WITH SIMILAR PANELS TO PROVIDE A CLADDING SUCH THAT THE MAIN AREA OF THE PANEL IS SPACED FROM SAID SUPPORTING STRUCTURE, SAID PANEL HAVING A CONTINUOUS RECESS ALONG AT LEAST ONE EDGE BUT NOT MORE THAN TWO EDGES, WHERE TWO EDGES ARE RECESSED THESE BEING ADJACENT EDGES, WHICH RECESS IS IN THE FORM OF A TROUGH HAVING A BASE AT SUCH A DEPTH THAT IT PROVIDES THE MEANS WHEREBY SAID PANEL IS MAINTAINED IN SPACED RELATIONSHIP FROM SAID SUPPORTING STRUCTURE, AND HAS A FLANGE FORMED ON THE LIMB FORMING THE SIDE OF THE TROUGH REMOTE FROM THE MAIN AREA OF THE PANEL, SAID FLANGE LYING IN A PLANE SUBSTANTIALLY PREPENDICULAR TO THE PLANE OF SAID LIMB AND EXTENDING FROM SAID LIMB IN A DIRECTION AWAY FROM
Claim 2
Dependent Claim
144 words
A GENERALLY RECTANGULAR PANEL OF A SYNTHETIC THERMOPLASTIC POLYMERIC MATERIAL FOR FASTENING TO A SUPPORTING STRUCTURE IN COMBINATION WITH SIMILAR PANELS TO PROVIDE A CLADDING SUCH THAT THE MAIN AREA OF THE PANEL IS SPACED FROM SAID SUPPORTING STRUCTURE, SAID PANEL HAVING A CONTINUOUS RECESS ALONG AT LEAST ONE EDGE BUT NOT MORE THAN TWO EDGES, WHERE TWO EDGES ARE RECESSED THESE BEING ADJACENT EDGES, WHICH RECESS IS IN THE FORM OF A TROUGH HAVING A BASE AT SUCH A DEPTH THAT IT PROVIDES THE MEANS WHEREBY SAID PANEL IS MAINTAINED IN SPACED RELATIONSHIP FROM SAID SUPPORTING STRUCTURE, AND HAS A FLANGE FORMED ON THE LIMB FORMING THE SIDE OF THE TROUGH REMOTE FROM THE MAIN AREA OF THE PANEL, SAID FLANGE LYING IN A PLANE SUBSTANTIALLY PREPENDICULAR TO THE PLANE OF SAID LIMB AND EXTENDING FROM SAID LIMB IN A DIRECTION AWAY FROM
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |