Patent US3438716A successfully refreshed from Google Patents.
US3438716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stamp device for writing instruments
Assignee: Individual
•
Filing: 1966-09-16
•
Granted: 1969-04-15
•
Expires: 1986-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jack David Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:39
CPC Classifications
B; B43; B43K; B43K29/00; B43K29/013; B41; B41K; B41K1/00; B41K1/003; B41K1/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2624315A
Cited
US2783711A
Cited
US2946311A
Cited
US3098467A
Cited
US3020838A
Cited
US3130712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |