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US2761079A
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US
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Electric vibrator mechanism
Assignee: Dynapac AB
•
Filing: 1951-11-23
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Granted: 1956-08-28
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Expires: 1971-11-23
Abstract
No abstract record available.
Inventors
- 👤 Giertz-Hedstrom Stig
- 👤 Adolph Friedrich
- 👤 Lindgren Carl Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:47
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/06; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18544; Y10T74/18552
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US586823A
Cited
US1925891A
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US1862356A
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FR810071A
Cited
US2161374A
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US2480825A
Cited
US2550571A
Cited
US2579865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |