US2541964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1947-12-22
•
Granted: 1951-02-13
•
Expires: 1967-12-22
Abstract
No abstract record available.
Inventors
- 👤 Orvylle R Hennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:28
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/002; A01B59/004; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US685011A
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US739511A
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US842770A
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US879384A
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US2104745A
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US2274895A
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US2347921A
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US2398152A
Cited
US2465734A
Cited
US2458312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |