Patent US3217631A successfully refreshed from Google Patents.
US3217631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Louver
Assignee: Formica Corp
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Filing: 1963-07-16
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Granted: 1965-11-16
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Thompson Presley Carter
- 👤 Logue Glenn Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:11
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/082; F; F24; F24F; F24F13/00; F24F13/08; F24F13/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A LOUVER BLADE HAVING TWO LEGS ARRANGED AT AN ACUTE ANGLE AND HAVING AT THE APEX THEREOF, AN OUTWARDLY EXTENDING LIMITING FLANGE EXTENDING AWAY FROM THE FACES THEREOF SO AS TO FORM, IN CROSS-SECTIONAL APPEARANCE, A GEOMETRICAL FIGURE HAVING THE GENERAL OUTLINE OF A RECTANGLE WHEREIN THE SIDES OF SAID RECTANGLE ADJACENT TO SAID LEGS ARE SUBSTANTIALLY AT RIGHT ANGLES TO SAID LEGS, SAID FLANGE FORMING AN ABUTMENT FOR A DECORATIVE LAMINATE.
Claim 2
Dependent Claim
72 words
A LOUVER BLADE HAVING TWO LEGS ARRANGED AT AN ACUTE ANGLE AND HAVING AT THE APEX THEREOF, AN OUTWARDLY EXTENDING LIMITING FLANGE EXTENDING AWAY FROM THE FACES THEREOF SO AS TO FORM, IN CROSS-SECTIONAL APPEARANCE, A GEOMETRICAL FIGURE HAVING THE GENERAL OUTLINE OF A RECTANGLE WHEREIN THE SIDES OF SAID RECTANGLE ADJACENT TO SAID LEGS ARE SUBSTANTIALLY AT RIGHT ANGLES TO SAID LEGS, SAID FLANGE FORMING AN ABUTMENT FOR A DECORATIVE LAMINATE.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |