Patent US3120883A successfully refreshed from Google Patents.
US3120883A
Expired / Lapsed
US
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Sectional shutter
Assignee: Lyf-Alum Inc
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Filing: 1960-05-13
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Granted: 1964-02-11
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Expires: 1980-05-13
Abstract
No abstract record available.
Inventors
- 👤 David J Greilling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:30
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SHUTTER ADJUSTABLE IN LENGTH COMPRISING, IN COMBINATION, AT LEAST A PAIR OF FORMED, LOUVERED, PLANAR MEMBERS HAVING SPACED, PARALLEL, LATERAL EDGES AND RELATIVELY ADJUSTABLE IN ASSEMBLED OVERLAPPED RELATION IN THE DIRECTION OF SAID LATERAL EDGES, IDENTICAL LOUVERS FORMED IN EACH OF SAID MEMBERS EXTENDING FROM THE CORRESPONDING SIDE THEREOF INTERMEDIATE SAID LATERAL EDGES AND TRANSVERSELY DISPOSED THERETO, THE LOUVERS OF SAID MEMBERS BEING IDENTICAL AND IDENTICALLY RELATED TO THE PLANES OF SAID MEMBERS, THE LOUVERS WITHIN THE OVERLAPPED MEMBER PORTIONS NESTING IN CONTIGUOUS RELATION, THE SPACING BETWEEN THE LOUVERS OF A COMMON MEMBER AND EACH MEMBER BEING EQUAL, SAID MEMBERS BEING SELECTIVELY ASSEMBLED IN ANY ONE OF A PLURALITY OF OVERLAPPED RELATIONSHIPS AS TO BE ADJUSTABLE IN A DIRECTION PARALLEL TO SAID LATERAL EDGES AND TRANSVERSE TO THE LONGITUDINAL LENGTH OF SAID LOUVERS TO VARY THE LENGTH OF THE SHUTTER ASSEMBLY PRODUCING A UNITARY SHUTTER APPEARANCE.
Claim 2
Dependent Claim
147 words
A SHUTTER ADJUSTABLE IN LENGTH COMPRISING, IN COMBINATION, AT LEAST A PAIR OF FORMED, LOUVERED, PLANAR MEMBERS HAVING SPACED, PARALLEL, LATERAL EDGES AND RELATIVELY ADJUSTABLE IN ASSEMBLED OVERLAPPED RELATION IN THE DIRECTION OF SAID LATERAL EDGES, IDENTICAL LOUVERS FORMED IN EACH OF SAID MEMBERS EXTENDING FROM THE CORRESPONDING SIDE THEREOF INTERMEDIATE SAID LATERAL EDGES AND TRANSVERSELY DISPOSED THERETO, THE LOUVERS OF SAID MEMBERS BEING IDENTICAL AND IDENTICALLY RELATED TO THE PLANES OF SAID MEMBERS, THE LOUVERS WITHIN THE OVERLAPPED MEMBER PORTIONS NESTING IN CONTIGUOUS RELATION, THE SPACING BETWEEN THE LOUVERS OF A COMMON MEMBER AND EACH MEMBER BEING EQUAL, SAID MEMBERS BEING SELECTIVELY ASSEMBLED IN ANY ONE OF A PLURALITY OF OVERLAPPED RELATIONSHIPS AS TO BE ADJUSTABLE IN A DIRECTION PARALLEL TO SAID LATERAL EDGES AND TRANSVERSE TO THE LONGITUDINAL LENGTH OF SAID LOUVERS TO VARY THE LENGTH OF THE SHUTTER ASSEMBLY PRODUCING A UNITARY SHUTTER APPEARANCE.
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) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |