US2928120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the manufacture of hollow articles
Assignee: Primerica Inc
•
Filing: 1955-12-20
•
Granted: 1960-03-15
•
Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Leghorn
- 👤 Jack B Meister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:54
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/28; B29C49/30; B29C49/36; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8798; Y10T83/8799; Y10T83/8801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1428855A
Cited
US1105529A
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US1104304A
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US2359216A
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US2500083A
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US2676368A
Cited
GB697326A
Cited
FR1029586A
Cited
US2715751A
Cited
US2784452A
Cited
GB713419A
Cited
US2792593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |