Patent US3328022A successfully refreshed from Google Patents.
US3328022A
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Vacuum holder
Assignee: Colight Inc
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Filing: 1964-12-10
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Granted: 1967-06-27
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Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 George D Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:49
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/02; B66C1/0281; B25; B25B; B25B11/00; B25B11/005; B66C1/0231; B66C1/0293; G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A VACUUM HOLDER FOR SHEETS OR THE LIKE, COMPRISING A BASE HAVING NESTED WALL SECTIONS UPSTANDING THEREFROM TO FORM A PLURALITY OF VACUUM COMPARTMENTS, A FORAMINOUS SUPPORT MEMBER EXTENDING OVER SAID WALL SECTIONS, SAID WALL SECTIONS HAVING ALIGNED OPENINGS THEREIN, AND A TUBE ADAPTED TO BE CONNECTED TO A SOURCE OF VACUUM, SAID TUBE BEING SLIDEABLE ENDWISE THROUGH SAID OPENINGS WHEREBY TO APPLY VACUUM TO ONE OR MORE OF SAID COMPARTMENTS.
Claim 2
Dependent Claim
71 words
A VACUUM HOLDER FOR SHEETS OR THE LIKE, COMPRISING A BASE HAVING NESTED WALL SECTIONS UPSTANDING THEREFROM TO FORM A PLURALITY OF VACUUM COMPARTMENTS, A FORAMINOUS SUPPORT MEMBER EXTENDING OVER SAID WALL SECTIONS, SAID WALL SECTIONS HAVING ALIGNED OPENINGS THEREIN, AND A TUBE ADAPTED TO BE CONNECTED TO A SOURCE OF VACUUM, SAID TUBE BEING SLIDEABLE ENDWISE THROUGH SAID OPENINGS WHEREBY TO APPLY VACUUM TO ONE OR MORE OF SAID COMPARTMENTS.
References Cited (Backward Citations)
US2814233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |