Patent US3533548A successfully refreshed from Google Patents.
US3533548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of ascertaining validity of heat seal and product of said method
Assignee: CR Bard Inc
•
Filing: 1968-10-17
•
Granted: 1970-10-13
•
Expires: 1988-10-17
Abstract
No abstract record available.
Inventors
- 👤 Michael Taterka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/91; B; B29; B29C; B29C66/00; B29C66/70; B29C66/74; B29C66/748; B29C66/7486; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D79/00; B65D79/02; B29C65/00; B29C65/02; B29C65/82; B29C65/8253; B29C66/71; B29C66/72; B29C66/723; B29C66/7232; B29C66/72327; B29C66/72328; B29K; B29K2711/00; B29K2711/12; B29L; B29L2031/00; B29L2031/712; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |