US3196935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draw closure
Assignee: Individual
•
Filing: 1963-01-04
•
Granted: 1965-07-27
•
Expires: 1983-01-04
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:43
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/11; E06B9/17; E06B9/17046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A DRAW CLOSURE COMPRISING A PAIR OF SPACED, PARALLEL MEMBERS OF GENRALLY F-SHAPED CROSS SECTIONAL SHAPE DEFINING THE SIDES OF A RECTANGULAR OPENING, EACH MEMBER COMPRISING A BASE PORTION AND A PAIR OF SPACED APART RIBS, SAID RIBS EXTENDNG FROM THE BOTTOM OF SAID OPENING TO A LEVEL SPACED FROM THE TOP OF SAID BASE PORTION, SAID RIBS EXTENDING TOWARD EACH OTHER ACROSS SAID OPENING AND DEFINING A PAIR OF GUIDING CHANNELS, A PAIR OF HEADED PINS EXTENDING ROM EACH BASE PORTION TOWARD THE OTHER BASE PORTION, SAID PAIR OF HEADED PINS BEING IN VERTICAL ARRAY ABOVE SAID LEVEL AND SPACED FROM SAID RIBS, A ROLL SUPPORT PLATE HAVING A BASE PORTION WITH A PAIR OF BAYONET SLOTS THEREIN ENGAGING SAID HEADED PINS AND A ROLLER PIN RECEIVING SLOT, A FRONT PORTION ON SAID BASE PORTION AT RIGHT ANGLES THERETO AND LYING IN THE PLANE OF AND ABOVE A SAID RIBE REMOTE FREOM SAID HEADED PINS, A SPRING URGED ROLLER HAVING AXIALLY EXTENDING PINS IN SAID ROLELR PIN RECEIVING SLOTS, A FLEXIBLE SHEET SECURED AT ONE END TO SAID ROLLER AND EXTENDING BETWEEN SAID PAIRS OF RIBS, AND MEANS FOR HOLDING SAID SHEET IN EXTENDED POSITION ACROSS SAID OPENING.
Claim 2
Dependent Claim
199 words
A DRAW CLOSURE COMPRISING A PAIR OF SPACED, PARALLEL MEMBERS OF GENRALLY F-SHAPED CROSS SECTIONAL SHAPE DEFINING THE SIDES OF A RECTANGULAR OPENING, EACH MEMBER COMPRISING A BASE PORTION AND A PAIR OF SPACED APART RIBS, SAID RIBS EXTENDNG FROM THE BOTTOM OF SAID OPENING TO A LEVEL SPACED FROM THE TOP OF SAID BASE PORTION, SAID RIBS EXTENDING TOWARD EACH OTHER ACROSS SAID OPENING AND DEFINING A PAIR OF GUIDING CHANNELS, A PAIR OF HEADED PINS EXTENDING ROM EACH BASE PORTION TOWARD THE OTHER BASE PORTION, SAID PAIR OF HEADED PINS BEING IN VERTICAL ARRAY ABOVE SAID LEVEL AND SPACED FROM SAID RIBS, A ROLL SUPPORT PLATE HAVING A BASE PORTION WITH A PAIR OF BAYONET SLOTS THEREIN ENGAGING SAID HEADED PINS AND A ROLLER PIN RECEIVING SLOT, A FRONT PORTION ON SAID BASE PORTION AT RIGHT ANGLES THERETO AND LYING IN THE PLANE OF AND ABOVE A SAID RIBE REMOTE FREOM SAID HEADED PINS, A SPRING URGED ROLLER HAVING AXIALLY EXTENDING PINS IN SAID ROLELR PIN RECEIVING SLOTS, A FLEXIBLE SHEET SECURED AT ONE END TO SAID ROLLER AND EXTENDING BETWEEN SAID PAIRS OF RIBS, AND MEANS FOR HOLDING SAID SHEET IN EXTENDED POSITION ACROSS SAID OPENING.
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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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |