Patent US2487803A successfully refreshed from Google Patents.
US2487803A
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Assignee: Waldes Kohinoor Inc
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Filing: 1947-08-21
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Granted: 1949-11-15
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Expires: 1967-08-21
Abstract
No abstract record available.
Inventors
- 👤 Heimann Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:08
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; F16B21/186; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/241; F16B2/245; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/903; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7655
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US319742A
Cited
US2026454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |