US3155203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple purpose door
Assignee: Individual
•
Filing: 1961-11-28
•
Granted: 1964-11-03
•
Expires: 1981-11-28
Abstract
No abstract record available.
Inventors
- 👤 John W Kappen
- 👤 Frieda E Kappen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:53
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A DOOR ASSEMBLY INCLUDING A FRAME HAVING MARGINS IN THE FORM OF LATERALLY SPACED APART SIDE PORTIONS AND INTERCONNECTING TOP AND BOTTOM PORTIONS, HINGES ON OPPOSITE PORTIONS OF SAID FRAME, SAID FRAME BEING OPEN BETWEEN SAID MARGINS, A PAIR OF DOORS RECEIVED IN SAID FRAME, EACH CONNECTED ALONG ONE SIDE EDGE TO THE HINGES ON ONE OF SAID RESPECTIVELY OPPOSITE PORTIONS OF SAID FRAME, SAID DOORS BEING SWINGABLE ON SAID HINGES TO OPEN AND CLOSED POSITIONS RELATIVE TO SAID FRAME, SAID DOORS WHEN CLOSED OCCUPYING A COMMON PLANE LOCATED SUBSTANTIALLY WITHIN SAID FRAME WITH THEIR OTHER SIDE EDGES IN ADJACENT RELATION TO ONE ANOTHER INTERMEDIATE SAID OPPOSITE PORTIONS OF SAID FRAME, MEANS FOR SELECTIVELY LOCKING SAID DOORS TO SAID FRAME WHEN CLOSED, AND MEANS SUPPORTING SAID FRAME FOR BODILY SWINGING MOTION ABOUT ONE OF ITS MARGINAL PORTIONS TO PROVIDE THAT SAID FRAME BE MOVABLE FROM A NORMAL UPRIGHT POSITION TO A GENERALLY HORIZONTAL POSITION FOR SERVICE AS A PLATFORM WHEREIN SAID DOORS DEFINE THE FLOOR OF SAID PLATFORM.
Claim 2
Dependent Claim
168 words
A DOOR ASSEMBLY INCLUDING A FRAME HAVING MARGINS IN THE FORM OF LATERALLY SPACED APART SIDE PORTIONS AND INTERCONNECTING TOP AND BOTTOM PORTIONS, HINGES ON OPPOSITE PORTIONS OF SAID FRAME, SAID FRAME BEING OPEN BETWEEN SAID MARGINS, A PAIR OF DOORS RECEIVED IN SAID FRAME, EACH CONNECTED ALONG ONE SIDE EDGE TO THE HINGES ON ONE OF SAID RESPECTIVELY OPPOSITE PORTIONS OF SAID FRAME, SAID DOORS BEING SWINGABLE ON SAID HINGES TO OPEN AND CLOSED POSITIONS RELATIVE TO SAID FRAME, SAID DOORS WHEN CLOSED OCCUPYING A COMMON PLANE LOCATED SUBSTANTIALLY WITHIN SAID FRAME WITH THEIR OTHER SIDE EDGES IN ADJACENT RELATION TO ONE ANOTHER INTERMEDIATE SAID OPPOSITE PORTIONS OF SAID FRAME, MEANS FOR SELECTIVELY LOCKING SAID DOORS TO SAID FRAME WHEN CLOSED, AND MEANS SUPPORTING SAID FRAME FOR BODILY SWINGING MOTION ABOUT ONE OF ITS MARGINAL PORTIONS TO PROVIDE THAT SAID FRAME BE MOVABLE FROM A NORMAL UPRIGHT POSITION TO A GENERALLY HORIZONTAL POSITION FOR SERVICE AS A PLATFORM WHEREIN SAID DOORS DEFINE THE FLOOR OF SAID PLATFORM.
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |