US3351405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desk top
Assignee: Hirsh Manufacturing Co SA Co
•
Filing: 1966-04-25
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Granted: 1967-11-07
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Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Irwin J Ferdinand
- 👤 Dale R Lopatka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:12
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/11; E06B9/115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A SLIDE TOP FOR CLOSING AN ACCESS OPENING TO A WORK SPACE COMPRISING A PLURALITY OF ELONGATED SECTIONALLY S-SHAPED ELEMENTS OF SHEET MATERIAL OR FINISHED SIDE WHICH INCLUDE A SINGLE VERTICAL CONTROL WALL HAVING UPPER AND LOWER HORIZONTAL WALLS CONNECTED THERETO AND EXTENDING SUBSTANTIALLY EQUAL DISTANCES IN OPPOSITE DIRECTIONS THEREFROM, TWO VERTICAL EDGE WALLS OF LESS HEIGHT THAN SAID CONTROL WALL EXTENDING IN OPPOSITE DIRECTIONS FROM THE REMOTE EDGES OF SAID HORIZONTAL WALLS THE EDGE EXTENDING AWAY FROM THE FINISHED SIDE BEING OF LESS HEIGHT THAN THE OTHER EDGE WALL, A PAIR OF PARALLEL COOPERATING GUIDEWAYS SLIDABLY RECEIVING THE ENDS OF SAID SLATS SIDE BY SIDE WITH THEIR ADJACENT EDGE WALLS OVERLAPPING IN INTERFITTING RELATIONSHIP AND IN ENGAGEMENT WITH ONE ANOTHER WHEN THE TOP IS EXTENDED WITH ALL FINISHED SIDES DISPOSED ON THE SAME SIDE OF THE SLIDE TOP.
Claim 2
Dependent Claim
139 words
A SLIDE TOP FOR CLOSING AN ACCESS OPENING TO A WORK SPACE COMPRISING A PLURALITY OF ELONGATED SECTIONALLY S-SHAPED ELEMENTS OF SHEET MATERIAL OR FINISHED SIDE WHICH INCLUDE A SINGLE VERTICAL CONTROL WALL HAVING UPPER AND LOWER HORIZONTAL WALLS CONNECTED THERETO AND EXTENDING SUBSTANTIALLY EQUAL DISTANCES IN OPPOSITE DIRECTIONS THEREFROM, TWO VERTICAL EDGE WALLS OF LESS HEIGHT THAN SAID CONTROL WALL EXTENDING IN OPPOSITE DIRECTIONS FROM THE REMOTE EDGES OF SAID HORIZONTAL WALLS THE EDGE EXTENDING AWAY FROM THE FINISHED SIDE BEING OF LESS HEIGHT THAN THE OTHER EDGE WALL, A PAIR OF PARALLEL COOPERATING GUIDEWAYS SLIDABLY RECEIVING THE ENDS OF SAID SLATS SIDE BY SIDE WITH THEIR ADJACENT EDGE WALLS OVERLAPPING IN INTERFITTING RELATIONSHIP AND IN ENGAGEMENT WITH ONE ANOTHER WHEN THE TOP IS EXTENDED WITH ALL FINISHED SIDES DISPOSED ON THE SAME SIDE OF THE SLIDE TOP.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2411902A
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Cited
US3044841A
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US3145767A
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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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |