Patent US2806632A successfully refreshed from Google Patents.
US2806632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package sealing machine
Assignee: WR Grace and Co
•
Filing: 1954-02-19
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Granted: 1957-09-17
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Expires: 1974-02-19
Abstract
No abstract record available.
Inventors
- 👤 Russell Arthur Gilbert
- 👤 Jr Frank Alfred Clary
- 👤 Casey Francis Bernard
- 👤 Dallon Robert Eldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:51
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B31/06; B65B51/00; B65B51/04; B67; B67B; B67B7/00; B67B7/24; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5102; Y10T29/5186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US750605A
Cited
US1313942A
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DE517245C
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US1736636A
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US2078064A
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US2014726A
Cited
US1971963A
Cited
US2063917A
Cited
US2433223A
Cited
US2445674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |