Patent US3129751A successfully refreshed from Google Patents.
US3129751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track assembly
Assignee: Individual
•
Filing: 1959-05-18
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Granted: 1964-04-21
•
Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Weber Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:37
CPC Classifications
A; A47; A47H; A47H1/00; A47H1/04; A47H1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A TRACK ASSEMBLY FOR SUPPORTING DRAW CURTAINS OR THE LIKE COMPRISING, IN COMBINATION, AN ELONGATED CHANNEL HAVING AN EXTERIOR TRACK PORTION AND A PAIR OF OPPOSED SIDE WALL PORTIONS RESPECTIVELY TERMINATING IN FREE EDGES WHICH ARE ADAPTED TO BE LOCATED ADJACENT A SURFACE OF A SUPPORT TO WHICH THE CHANNEL IS TO BE CONNECTED WITH THE HOLLOW INTERIOR THEREOF DIRECTED TOWARD THE SUPPORT SURFACE, SAID SIDE WALL PORTIONS OF SAID CHANNEL FIXEDLY CARRYING IN THE INTERIOR OF SAID CHANNEL A PAIR OF FLANGES, RESPECTIVELY, WHICH EXTEND LONGITUDINALLY OF SAID CHANNEL AND HAVING INNER FREE EDGES SPACED FROM EACH OTHER IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL DIRECTION OF SAID CHANNEL A PREDETERMINED DISTANCE; AND ROTARY RIGID FASTENER MEANS ADAPTED TO BE TURNABLY CONNECTED TO SAID SUPPORT AT SAID SURFACE THEREOF AND HAVING A PAIR OF OPPOSED WINGS HAVING EACH A WIDTH SMALLER THAN SAID PREDETERMINED DISTANCE AND HAVING RESPECTIVELY
Claim 2
Dependent Claim
149 words
A TRACK ASSEMBLY FOR SUPPORTING DRAW CURTAINS OR THE LIKE COMPRISING, IN COMBINATION, AN ELONGATED CHANNEL HAVING AN EXTERIOR TRACK PORTION AND A PAIR OF OPPOSED SIDE WALL PORTIONS RESPECTIVELY TERMINATING IN FREE EDGES WHICH ARE ADAPTED TO BE LOCATED ADJACENT A SURFACE OF A SUPPORT TO WHICH THE CHANNEL IS TO BE CONNECTED WITH THE HOLLOW INTERIOR THEREOF DIRECTED TOWARD THE SUPPORT SURFACE, SAID SIDE WALL PORTIONS OF SAID CHANNEL FIXEDLY CARRYING IN THE INTERIOR OF SAID CHANNEL A PAIR OF FLANGES, RESPECTIVELY, WHICH EXTEND LONGITUDINALLY OF SAID CHANNEL AND HAVING INNER FREE EDGES SPACED FROM EACH OTHER IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL DIRECTION OF SAID CHANNEL A PREDETERMINED DISTANCE; AND ROTARY RIGID FASTENER MEANS ADAPTED TO BE TURNABLY CONNECTED TO SAID SUPPORT AT SAID SURFACE THEREOF AND HAVING A PAIR OF OPPOSED WINGS HAVING EACH A WIDTH SMALLER THAN SAID PREDETERMINED DISTANCE AND HAVING RESPECTIVELY
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |