US3152848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desk
Assignee: Individual
•
Filing: 1961-08-25
•
Granted: 1964-10-13
•
Expires: 1981-08-25
Abstract
No abstract record available.
Inventors
- 👤 Kalk Joseph Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:18
CPC Classifications
A; A47; A47B; A47B41/00; A47B41/02; A47B2200/00; A47B2200/0035; A47B2200/004; A47B2200/0043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A DUAL PURPOSE STUDENT CLASSROOM DESK CONVERTIBLE TO A TEACHING LABORATORY STUDENT STATION COMPRISING A DESK HAVING A TOP AND MEANS INCLUDING UPRIGHT LEGS FOR SUPPORTING SAID TOP IN SPACED RELATION TO A FLOOR AND TO PROVIDE STUDENT LEG-ROOM THEREBENEATH, A SECTION AT LEAST OF SAID DESK TOP BEING HINGEDLY CONNECTED TO THE DESK ADJACENT ONE MARGIN THEREOF TO SWING INTO UPWARDLY EXTENDING POSITION, A FLAT PANEL HINGEDLY CONNECTED TO SAID SWINGABLE DESK TOP SECTION ALONG A MARGIN OF SAID SWINGABLE DESK TOP SECTION INTERSECTING SAID FIRST NAMED MARGIN, TO SWING FROM A FIRST POSITION FLATWISE AGAINST THE DESK TOP SECTION TO A SECOND POSITION ESSENTIALLY NORMAL THERETO WHEN THE DESK TOP SECTION IS IN UPSTANDING POSITION AND FORMING WITH
Claim 2
Dependent Claim
120 words
A DUAL PURPOSE STUDENT CLASSROOM DESK CONVERTIBLE TO A TEACHING LABORATORY STUDENT STATION COMPRISING A DESK HAVING A TOP AND MEANS INCLUDING UPRIGHT LEGS FOR SUPPORTING SAID TOP IN SPACED RELATION TO A FLOOR AND TO PROVIDE STUDENT LEG-ROOM THEREBENEATH, A SECTION AT LEAST OF SAID DESK TOP BEING HINGEDLY CONNECTED TO THE DESK ADJACENT ONE MARGIN THEREOF TO SWING INTO UPWARDLY EXTENDING POSITION, A FLAT PANEL HINGEDLY CONNECTED TO SAID SWINGABLE DESK TOP SECTION ALONG A MARGIN OF SAID SWINGABLE DESK TOP SECTION INTERSECTING SAID FIRST NAMED MARGIN, TO SWING FROM A FIRST POSITION FLATWISE AGAINST THE DESK TOP SECTION TO A SECOND POSITION ESSENTIALLY NORMAL THERETO WHEN THE DESK TOP SECTION IS IN UPSTANDING POSITION AND FORMING WITH
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US1272245A
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Cited
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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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |