Patent DE640192C successfully refreshed from Google Patents.
Patent US3242780A successfully refreshed from Google Patents.
US3242780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duct board grooving machine having inside dimension compensator
Assignee: Engel Equipment Inc
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Filing: 1964-05-01
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Granted: 1966-03-29
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Expires: 1984-05-01
Abstract
No abstract record available.
Inventors
- 👤 Walter A Ried
- 👤 Jr Joseph J Schrader
- 👤 Charles W Werntz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:32
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/06; B29C37/00; B29C37/0053; B29C37/0057; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/502624; Y10T83/00; Y10T83/02; Y10T83/0304; Y10T83/748; Y10T83/849; Y10T83/853; Y10T83/855; Y10T83/856; Y10T83/857; Y10T83/869; Y10T83/8821; Y10T83/8822
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A MACHINE FOR SUPPORTING SHEET BOARD MATERIAL AND PERFORMING LINEAR GROOVING, CUTTING AND LIKE OPERATIONS THEREON, COMPRISING CUTTING MEANS MOVABLE IN A VERTICAL PATH, MEANS TO VARY THE LONGITUDINAL POSITION OF SAID CUTTING MEANS, MEANS SUPPORTIVE OF SAID CUTTING MEANS AND SAID LONGITUDINAL POSITIONING MEANS TO ESTABLISH A VERTICAL PLANE AT WHICH SHEET BOARD MATERIAL MAY BE HELD IN A SUPPORT POSITION, MEANS BEHIND SUCH VERTICAL PLANE TO FIX SUCH SHEET BOARD MATERIAL AT SUCH SUPPORT POSITION, AND MEANS POSITIONABLE TO PROJECT LATERALLY FROM THE FRONT OF SUCH PLANE ALONG THE LOWER MARGIN OF SUCH SUPPORT POSITION, WHEREBY TO SUPPORT SUCH SHEET MATERIAL TEMPORARILY WHILE ITS LONGITUDINAL ALIGNMENT AT SUCH VERTICAL PLANE IS SET, SUCH POSITIONABLE MEANS BEING RETRACTABLE FROM TEM-
Claim 2
Dependent Claim
121 words
A MACHINE FOR SUPPORTING SHEET BOARD MATERIAL AND PERFORMING LINEAR GROOVING, CUTTING AND LIKE OPERATIONS THEREON, COMPRISING CUTTING MEANS MOVABLE IN A VERTICAL PATH, MEANS TO VARY THE LONGITUDINAL POSITION OF SAID CUTTING MEANS, MEANS SUPPORTIVE OF SAID CUTTING MEANS AND SAID LONGITUDINAL POSITIONING MEANS TO ESTABLISH A VERTICAL PLANE AT WHICH SHEET BOARD MATERIAL MAY BE HELD IN A SUPPORT POSITION, MEANS BEHIND SUCH VERTICAL PLANE TO FIX SUCH SHEET BOARD MATERIAL AT SUCH SUPPORT POSITION, AND MEANS POSITIONABLE TO PROJECT LATERALLY FROM THE FRONT OF SUCH PLANE ALONG THE LOWER MARGIN OF SUCH SUPPORT POSITION, WHEREBY TO SUPPORT SUCH SHEET MATERIAL TEMPORARILY WHILE ITS LONGITUDINAL ALIGNMENT AT SUCH VERTICAL PLANE IS SET, SUCH POSITIONABLE MEANS BEING RETRACTABLE FROM TEM-
References Cited (Backward Citations)
US532822A
Cited
US2436111A
Cited
US2793471A
Cited
US2931401A
Cited
US2992662A
Cited
US3111148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |