US3472368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1968-10-04
•
Granted: 1969-10-14
•
Expires: 1988-10-04
Abstract
No abstract record available.
Inventors
- 👤 Harold R Hellstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:41
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5827; B65D75/585; B65D75/28; B65D75/30; B65D75/32; B65D75/36; B65D75/366; B65D75/367; B65D2575/00; B65D2575/28; B65D2575/30; B65D2575/36; B65D2575/361; B65D2575/362; B65D2575/366; B65D2575/367
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3261538A
Cited
US3207299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |