US2581898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receptacle filling mechanism
Assignee: GTE Sylvania Inc
•
Filing: 1948-03-25
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Granted: 1952-01-08
•
Expires: 1968-03-25
Abstract
No abstract record available.
Inventors
- 👤 Robert H Alexander
- 👤 Spicer Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:33
CPC Classifications
B; B65; B65B; B65B39/00; B65B39/14; B30; B30B; B30B15/00; B30B15/30; B30B15/302
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) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |