Patent US2950233A successfully refreshed from Google Patents.
US2950233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hard surfaces on base metals
Assignee: Horizons Inc
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Filing: 1954-04-29
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Granted: 1960-08-23
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Expires: 1974-04-29
Abstract
No abstract record available.
Inventors
- 👤 Morris A Steinberg
- 👤 Robert G Mcallen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:24
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/66; C23; C23C; C23C10/00; C23C10/28; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/939
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |