US3091006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1961-08-01
•
Granted: 1963-05-28
•
Expires: 1981-08-01
Abstract
No abstract record available.
Inventors
- 👤 Sahlertz Ebbe Herluf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:44
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/40; E06B3/66; E06B3/67; E06B3/6715; E06B3/6722
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A WINDOW CONSTRUCTION COMPRISING AT LEAST TWO PLATES OF TRANSPARENT MATERIAL PLACED GENERALLY PARALLEL TO ONE ANOTHER AND DEFINING A SPACE THEREBETWEEN, AN AIRTIGHT WINDOW FRAME DISPOSED AROUND SAID PLATES AND PIVOTALLY MOUNTED IN A WALL FRAME FOR MOVEMENT INTO DIFFERENT VERTICAL POSITIONS, A CHAMBER EXTENDING ALONG ONE HORIZONTAL SIDE OF SAID FRAME, AN EASY RUNNING GRANULATE IN SAID CHAMBER IN SUFFICIENT QUANTITY FOR FILLING SAID SPACE BETWEEN SAID PLATES AND PASSAGE MEANS PERMITTING THE TRANSFER OF SAID GRANULATE FROM SAID CHAMBER TO SAID SPACE AND FROM SAID SPACE TO SAID CHAMBER, SAID PASSAGE MEANS COMPRISING A LONGITUDINAL SLOT DEFINED IN SAID FRAME AND EXTENDING SUBSTANTIALLY THE FULL LENGTH OF SAID HORIZONTAL SIDE AND INCLUDING MEANS FOR OPENING AND CLOSING SAID PASSAGE MEANS.
Claim 2
Dependent Claim
124 words
IN A WINDOW CONSTRUCTION COMPRISING AT LEAST TWO PLATES OF TRANSPARENT MATERIAL PLACED GENERALLY PARALLEL TO ONE ANOTHER AND DEFINING A SPACE THEREBETWEEN, AN AIRTIGHT WINDOW FRAME DISPOSED AROUND SAID PLATES AND PIVOTALLY MOUNTED IN A WALL FRAME FOR MOVEMENT INTO DIFFERENT VERTICAL POSITIONS, A CHAMBER EXTENDING ALONG ONE HORIZONTAL SIDE OF SAID FRAME, AN EASY RUNNING GRANULATE IN SAID CHAMBER IN SUFFICIENT QUANTITY FOR FILLING SAID SPACE BETWEEN SAID PLATES AND PASSAGE MEANS PERMITTING THE TRANSFER OF SAID GRANULATE FROM SAID CHAMBER TO SAID SPACE AND FROM SAID SPACE TO SAID CHAMBER, SAID PASSAGE MEANS COMPRISING A LONGITUDINAL SLOT DEFINED IN SAID FRAME AND EXTENDING SUBSTANTIALLY THE FULL LENGTH OF SAID HORIZONTAL SIDE AND INCLUDING MEANS FOR OPENING AND CLOSING SAID PASSAGE MEANS.
References Cited (Backward Citations)
US2433456A
Cited
US2515406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |