US3334442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glide door mounting
Assignee: Bastian Blessing Co
•
Filing: 1965-10-21
•
Granted: 1967-08-08
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Rudolf G Boettcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:38
CPC Classifications
F; F16; F16C; F16C39/00; F16C39/06; F16C39/063; E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; F16C32/00; F16C32/04; F16C32/0406; F16C32/0408; F16C32/0423; F16C32/0434; E05D2015/0695; E05Y; E05Y2800/00; E05Y2800/67; E05Y2800/672; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; F16C2350/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
IN A GLIDING MAGNETIC FLUX SUPPORT FOR RECTILINEAL MOVEMENT OF DOORS THE COMBINATION OF FOUR STRIP MAGNETS ARRANGED IN PAIRS WITH THE FACES OF THE MAGNETS EXTENDING SUBSTANTIALLY THE LENGTH OF DOOR TRAVEL AND BEING OF EACH PAIR DIRECTLY OPPOSITE AND IN CLOSE PROXIMITY WITH EACH OTHER UNDER WORKING CONDITIONS AND THE INTERFACES OF THE TWO PAIRS PROVIDING AN INCLUDED ANGLE COMING WITHIN THE RANGE OF 45* TO 150* WITH THE REMOTE POLES OF MAG-
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |