US3274746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for packaging units in a preservative atmosphere
Assignee: Hayssen Manufacturing Co
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Filing: 1963-09-09
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Granted: 1966-09-27
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Robert C James
- 👤 David A Wilson
- 👤 Jr Frank E Pringle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:59
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B9/00; B65B9/06; B65B2009/063
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
IN A METHOD OF PACKAGING A PLURALITY OF SPACED UNITS IN A FORWARDLY MOVING ELONGATED TUBE OF GAS IMPERVIOUS FLEXIBLE MATERIAL ADAPTED TO BE PROGRESSIVELY SEALED ABOUT SAID UNITS, THE STEPS OF FLOWING PRESERVATIVE GAS IN SAID TUBE, WITHDRAWING GAS FROM SAID TUBE AS IT IS MOVING FORWARD, AND RECIRCULATING WITHDRAWN GAS OVER SPACED UNITS BEING MOVED FORWARDLY INTO THE TUBE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |