US3492773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of vacuum packaging
Assignee: SPX Flow Technology Systems Inc
•
Filing: 1967-01-25
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Granted: 1970-02-03
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Expires: 1987-01-25
Abstract
No abstract record available.
Inventors
- 👤 Roger C Bergstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:36
CPC Classifications
B; B29; B29C; B29C51/00; B65; B65B; B65B31/00; B65B31/02; B65B31/021; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/001; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461
Claims Analysis
Total Claims: 0
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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) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |