US3467244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evacuated package with semirigid shell and flexible closure
Assignee: Mahaffy and Harder Engineering Co
•
Filing: 1967-03-10
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Granted: 1969-09-16
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Expires: 1987-03-10
Abstract
No abstract record available.
Inventors
- 👤 Reid A Mahaffy
- 👤 Joel A Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:59
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65D75/325; B65D75/326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2290095A
Cited
US2335914A
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US2796979A
Cited
US3153505A
Cited
US3246745A
Cited
US3349985A
Cited
US3371848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |