US3120432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collector and support for the bag thereof
Assignee: Hammond Machinery Builders Inc
•
Filing: 1960-08-01
•
Granted: 1964-02-04
•
Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert H Aldrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:28
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/42; B01D46/48; B01D46/66; B01D46/70; B01D46/71; B01D50/00; B01D50/20; B04; B04C; B04C3/00; B04C3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1260407A
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US1428583A
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US1761377A
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US1813896A
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US1886884A
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DE611252C
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US2456639A
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US2607436A
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US2540919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |