US2542702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric heat sealer
Assignee: RCA Corp
•
Filing: 1947-05-29
•
Granted: 1951-02-20
•
Expires: 1967-05-29
Abstract
No abstract record available.
Inventors
- 👤 Albert H Prow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:11
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/62; B; B67; B67B; B67B3/00; B67B3/02; B67B3/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2222615A
Cited
US2321131A
Cited
US2397615A
Cited
US2453185A
Cited
US2429255A
Cited
US2467133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |