US3220062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame for areal structural members, in particular for windows, doors and the sashes thereof
Assignee: Individual
•
Filing: 1962-10-09
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Granted: 1965-11-30
•
Expires: 1982-10-09
Abstract
No abstract record available.
Inventors
- 👤 Ludwig M Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:38
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/06; E06B3/08; E06B3/20; E06B3/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
A FRAME FOR AREAL STRUCTURAL MEMBERS COMPOSED OF A PLURALITY OF INDIVIDUAL LENGTHS OF A HOLLOW PROFILE MADE OF SYNTHETIC PLASTIC, SAID HOLLOW PROFILE BEING OF A BOXLIKE CONFIGURATION HAVING OPPOSED WALLS, INTEGRAL WEBS INTERPOSED BETWEEN OPPOSED PROFILE WALLS AND EXTENDING THE LENGTH OF SAID PROFILE, SAID WEBS BEING PERPENDICULARLY RELATED TO EACH OTHER AND TO THE ASSOCIATED PROFILE WALLS AND DEFINING A PLURALITY OF RECTANGULAR CELLS WITHIN SAID PROFILE, A PANE ABUTTING LEDGE PROJECTING OUTWARDLY FROM THE EXTERIOR OF SAID HOLLOW PROFILE AND EXTENDING THE LENGTH THEREOF, A BORDER PROJECTING OUTWARDLY FROM THE EXTERIOR OF SAID HOLLOW PROFILE AND EXTENDING LONGITUDINALLY THE LENGTH OF SAID PROFILE, SAID BORDER AND SAID PANE ABUTTING LEDGE BEING ARRANGED ON OPPOSITE SIDES OF SAID PROFILE,
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |