US2554432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant dusting device
Assignee: HOWRY BERG Inc
•
Filing: 1944-06-26
•
Granted: 1951-05-22
•
Expires: 1964-06-26
Abstract
No abstract record available.
Inventors
- 👤 Walters Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:19
CPC Classifications
A; A01; A01M; A01M9/00; A01M9/0007; A01M9/003; Y; Y10; Y10S; Y10S239/00; Y10S239/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US157256A
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US959819A
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FR472197A
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US1515336A
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US1674391A
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US1769159A
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US2040845A
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US2157630A
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US2171205A
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US2242722A
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US2279495A
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US2425419A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |