Patent US3321889A successfully refreshed from Google Patents.
US3321889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging of synthetic rubber blocks
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-06-11
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Granted: 1967-05-30
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Arnold R Zubick
- 👤 John C Mosley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:47
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B31/08; B29; B29B; B29B15/00; B29B15/02; B29B15/026; B65B35/00; B65B35/10; B65B35/16; B65B35/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
APPARATUS FOR LIFTING A GAS-PERIOUS LOAD ENCLOSED IN SUBSTANTIALLY GAS-IMPERVIOUS FILM WRAPPER, COMPRISING; A SHALLOW, INVERTED VACUUM PAN HAVING A LOWER EDGE FOR ENGAGING THE WRAPPER; A VACUUM CONNECTION THROUGH THE BOTTOM OF THE PAN FOR CONNECTION TO A VACUUM PUMP; A DOWNWARDLY EXTENDING KNIFE-EDGE IN THE PAN IN CLOSE PROXIMITY TO THE VACUUM CONNECTION FOR SLITTING THE FILM WRAPPER WHEN THE FILM WRAPPER IS DRAWN UP WITHIN THE PAN TOWARD SAID VACUUM CONNECTION; A WORK TABLE FOR SUPPORTING SAID GAS-PERVIOUS LOAD; AND MEANS FOR VERTICALLY MOVING SAID VACUUM PAN RELATIVE TO SAID WORK TABLE FOR POSITIONING SAID PAN ON SAID LOAD.
Claim 2
Dependent Claim
102 words
APPARATUS FOR LIFTING A GAS-PERIOUS LOAD ENCLOSED IN SUBSTANTIALLY GAS-IMPERVIOUS FILM WRAPPER, COMPRISING; A SHALLOW, INVERTED VACUUM PAN HAVING A LOWER EDGE FOR ENGAGING THE WRAPPER; A VACUUM CONNECTION THROUGH THE BOTTOM OF THE PAN FOR CONNECTION TO A VACUUM PUMP; A DOWNWARDLY EXTENDING KNIFE-EDGE IN THE PAN IN CLOSE PROXIMITY TO THE VACUUM CONNECTION FOR SLITTING THE FILM WRAPPER WHEN THE FILM WRAPPER IS DRAWN UP WITHIN THE PAN TOWARD SAID VACUUM CONNECTION; A WORK TABLE FOR SUPPORTING SAID GAS-PERVIOUS LOAD; AND MEANS FOR VERTICALLY MOVING SAID VACUUM PAN RELATIVE TO SAID WORK TABLE FOR POSITIONING SAID PAN ON SAID LOAD.
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |