US2640159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for convergent irradiation
Assignee: Siemens Reiniger Werke AG
•
Filing: 1949-09-30
•
Granted: 1953-05-26
•
Expires: 1969-09-30
Abstract
No abstract record available.
Inventors
- 👤 Gerneth Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:26
CPC Classifications
G; G21; G21K; G21K5/00; G21K5/10; A; A61; A61N; A61N5/00; A61N5/01; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18544
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE287291C
Cited
US981256A
Cited
US1408559A
Cited
US1599696A
Cited
DE418214C
Cited
AT120097B
Cited
AT123130B
Cited
US2058105A
Cited
US1887801A
Cited
US2139966A
Cited
GB458677A
Cited
US2472745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |